/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 09:05:36,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 09:05:36,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 09:05:36,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-13 09:05:36,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-13 09:05:36,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-13 09:05:36,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-13 09:05:36,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-13 09:05:36,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-13 09:05:36,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-13 09:05:36,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-13 09:05:36,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-13 09:05:36,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 09:05:36,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 09:05:36,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 09:05:36,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 09:05:36,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 09:05:36,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 09:05:36,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 09:05:36,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 09:05:36,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 09:05:36,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 09:05:36,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 09:05:36,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 09:05:36,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-13 09:05:36,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 09:05:36,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 09:05:36,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 09:05:36,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-06-13 09:05:36,683 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 09:05:36,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 09:05:36,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 09:05:36,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 09:05:36,686 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 09:05:36,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 09:05:36,687 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 09:05:36,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 09:05:36,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 09:05:36,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 09:05:36,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 09:05:36,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 09:05:36,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 09:05:36,689 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 09:05:36,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 09:05:36,689 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 09:05:36,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 09:05:36,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 09:05:36,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 09:05:36,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 09:05:36,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 09:05:36,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 09:05:36,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 09:05:36,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 09:05:36,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 09:05:36,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 09:05:36,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 09:05:36,691 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 09:05:36,692 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 09:05:36,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 09:05:37,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 09:05:37,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 09:05:37,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 09:05:37,059 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 09:05:37,060 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 09:05:37,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-subst.wvr.bpl [2021-06-13 09:05:37,061 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-subst.wvr.bpl' [2021-06-13 09:05:37,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 09:05:37,101 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 09:05:37,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 09:05:37,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 09:05:37,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 09:05:37,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:05:37" (1/1) ... [2021-06-13 09:05:37,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:05:37" (1/1) ... [2021-06-13 09:05:37,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 09:05:37,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 09:05:37,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 09:05:37,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 09:05:37,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:05:37" (1/1) ... [2021-06-13 09:05:37,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:05:37" (1/1) ... [2021-06-13 09:05:37,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:05:37" (1/1) ... [2021-06-13 09:05:37,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:05:37" (1/1) ... [2021-06-13 09:05:37,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:05:37" (1/1) ... [2021-06-13 09:05:37,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:05:37" (1/1) ... [2021-06-13 09:05:37,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:05:37" (1/1) ... [2021-06-13 09:05:37,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 09:05:37,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 09:05:37,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 09:05:37,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 09:05:37,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:05:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 09:05:37,219 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-13 09:05:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-13 09:05:37,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-13 09:05:37,220 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-13 09:05:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-13 09:05:37,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-13 09:05:37,220 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 09:05:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 09:05:37,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 09:05:37,221 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-13 09:05:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-13 09:05:37,221 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-13 09:05:37,222 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 09:05:37,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 09:05:37,548 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-06-13 09:05:37,549 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-06-13 09:05:37,550 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-06-13 09:05:37,550 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-06-13 09:05:37,551 INFO L202 PluginConnector]: Adding new model array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 09:05:37 BoogieIcfgContainer [2021-06-13 09:05:37,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 09:05:37,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 09:05:37,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 09:05:37,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 09:05:37,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 09:05:37" (1/2) ... [2021-06-13 09:05:37,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a29eedb and model type array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 09:05:37, skipping insertion in model container [2021-06-13 09:05:37,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 09:05:37" (2/2) ... [2021-06-13 09:05:37,558 INFO L111 eAbstractionObserver]: Analyzing ICFG array-int-subst.wvr.bpl [2021-06-13 09:05:37,563 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 09:05:37,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 09:05:37,564 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 09:05:37,592 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-13 09:05:37,612 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-13 09:05:37,648 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 09:05:37,649 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 09:05:37,649 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 09:05:37,649 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 09:05:37,649 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 09:05:37,649 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 09:05:37,649 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 09:05:37,649 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 09:05:37,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 22 transitions, 68 flow [2021-06-13 09:05:37,675 INFO L129 PetriNetUnfolder]: 3/19 cut-off events. [2021-06-13 09:05:37,675 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-13 09:05:37,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 19 events. 3/19 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2021-06-13 09:05:37,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 22 transitions, 68 flow [2021-06-13 09:05:37,681 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 17 transitions, 52 flow [2021-06-13 09:05:37,687 INFO L129 PetriNetUnfolder]: 3/16 cut-off events. [2021-06-13 09:05:37,687 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-13 09:05:37,687 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:37,688 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:37,688 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:37,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:37,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1976873284, now seen corresponding path program 1 times [2021-06-13 09:05:37,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:37,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474621034] [2021-06-13 09:05:37,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:37,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:37,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:37,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:37,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:37,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:37,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:37,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:37,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:37,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:37,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:37,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:37,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:37,935 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474621034] [2021-06-13 09:05:37,935 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474621034] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:05:37,935 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:05:37,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-13 09:05:37,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696165653] [2021-06-13 09:05:37,942 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 09:05:37,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:37,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 09:05:37,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 09:05:37,959 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:37,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 52 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:37,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:37,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:37,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:38,177 INFO L129 PetriNetUnfolder]: 131/222 cut-off events. [2021-06-13 09:05:38,177 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-06-13 09:05:38,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 222 events. 131/222 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 684 event pairs, 28 based on Foata normal form. 1/145 useless extension candidates. Maximal degree in co-relation 418. Up to 93 conditions per place. [2021-06-13 09:05:38,183 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 24 selfloop transitions, 9 changer transitions 0/40 dead transitions. [2021-06-13 09:05:38,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 40 transitions, 164 flow [2021-06-13 09:05:38,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 09:05:38,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-13 09:05:38,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2021-06-13 09:05:38,196 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8090909090909091 [2021-06-13 09:05:38,197 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 89 transitions. [2021-06-13 09:05:38,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 89 transitions. [2021-06-13 09:05:38,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:38,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 89 transitions. [2021-06-13 09:05:38,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,210 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,212 INFO L185 Difference]: Start difference. First operand has 24 places, 17 transitions, 52 flow. Second operand 5 states and 89 transitions. [2021-06-13 09:05:38,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 40 transitions, 164 flow [2021-06-13 09:05:38,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 40 transitions, 152 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-06-13 09:05:38,218 INFO L241 Difference]: Finished difference. Result has 25 places, 25 transitions, 102 flow [2021-06-13 09:05:38,219 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=25, PETRI_TRANSITIONS=25} [2021-06-13 09:05:38,220 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2021-06-13 09:05:38,220 INFO L482 AbstractCegarLoop]: Abstraction has has 25 places, 25 transitions, 102 flow [2021-06-13 09:05:38,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,221 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:38,221 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:38,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 09:05:38,221 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:38,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:38,222 INFO L82 PathProgramCache]: Analyzing trace with hash 20162568, now seen corresponding path program 2 times [2021-06-13 09:05:38,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:38,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852276185] [2021-06-13 09:05:38,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:38,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:38,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:38,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:38,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:38,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:38,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:38,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:38,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852276185] [2021-06-13 09:05:38,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852276185] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:05:38,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:05:38,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-13 09:05:38,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796388768] [2021-06-13 09:05:38,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 09:05:38,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:38,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 09:05:38,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 09:05:38,324 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:38,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 25 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:38,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:38,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:38,513 INFO L129 PetriNetUnfolder]: 247/429 cut-off events. [2021-06-13 09:05:38,513 INFO L130 PetriNetUnfolder]: For 267/267 co-relation queries the response was YES. [2021-06-13 09:05:38,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 429 events. 247/429 cut-off events. For 267/267 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1727 event pairs, 52 based on Foata normal form. 1/427 useless extension candidates. Maximal degree in co-relation 1055. Up to 162 conditions per place. [2021-06-13 09:05:38,521 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 29 selfloop transitions, 14 changer transitions 0/50 dead transitions. [2021-06-13 09:05:38,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 50 transitions, 281 flow [2021-06-13 09:05:38,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 09:05:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-13 09:05:38,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2021-06-13 09:05:38,528 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8090909090909091 [2021-06-13 09:05:38,528 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 89 transitions. [2021-06-13 09:05:38,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 89 transitions. [2021-06-13 09:05:38,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:38,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 89 transitions. [2021-06-13 09:05:38,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,536 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,536 INFO L185 Difference]: Start difference. First operand has 25 places, 25 transitions, 102 flow. Second operand 5 states and 89 transitions. [2021-06-13 09:05:38,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 50 transitions, 281 flow [2021-06-13 09:05:38,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 50 transitions, 281 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-13 09:05:38,545 INFO L241 Difference]: Finished difference. Result has 32 places, 33 transitions, 205 flow [2021-06-13 09:05:38,546 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=32, PETRI_TRANSITIONS=33} [2021-06-13 09:05:38,546 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2021-06-13 09:05:38,546 INFO L482 AbstractCegarLoop]: Abstraction has has 32 places, 33 transitions, 205 flow [2021-06-13 09:05:38,547 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,547 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:38,547 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:38,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 09:05:38,547 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:38,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:38,549 INFO L82 PathProgramCache]: Analyzing trace with hash -2040377020, now seen corresponding path program 3 times [2021-06-13 09:05:38,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:38,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342964270] [2021-06-13 09:05:38,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:38,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:38,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:38,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:38,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:38,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:38,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:38,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342964270] [2021-06-13 09:05:38,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342964270] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:05:38,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:05:38,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-13 09:05:38,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784387520] [2021-06-13 09:05:38,634 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 09:05:38,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:38,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 09:05:38,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 09:05:38,636 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:38,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 33 transitions, 205 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:38,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:38,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:38,803 INFO L129 PetriNetUnfolder]: 363/640 cut-off events. [2021-06-13 09:05:38,804 INFO L130 PetriNetUnfolder]: For 1133/1139 co-relation queries the response was YES. [2021-06-13 09:05:38,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2106 conditions, 640 events. 363/640 cut-off events. For 1133/1139 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3081 event pairs, 94 based on Foata normal form. 1/639 useless extension candidates. Maximal degree in co-relation 1963. Up to 285 conditions per place. [2021-06-13 09:05:38,811 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 37 selfloop transitions, 16 changer transitions 0/60 dead transitions. [2021-06-13 09:05:38,811 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 60 transitions, 457 flow [2021-06-13 09:05:38,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 09:05:38,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-13 09:05:38,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2021-06-13 09:05:38,816 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8090909090909091 [2021-06-13 09:05:38,816 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 89 transitions. [2021-06-13 09:05:38,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 89 transitions. [2021-06-13 09:05:38,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:38,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 89 transitions. [2021-06-13 09:05:38,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,819 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,820 INFO L185 Difference]: Start difference. First operand has 32 places, 33 transitions, 205 flow. Second operand 5 states and 89 transitions. [2021-06-13 09:05:38,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 60 transitions, 457 flow [2021-06-13 09:05:38,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 60 transitions, 449 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-06-13 09:05:38,828 INFO L241 Difference]: Finished difference. Result has 39 places, 43 transitions, 349 flow [2021-06-13 09:05:38,828 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=349, PETRI_PLACES=39, PETRI_TRANSITIONS=43} [2021-06-13 09:05:38,829 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 15 predicate places. [2021-06-13 09:05:38,829 INFO L482 AbstractCegarLoop]: Abstraction has has 39 places, 43 transitions, 349 flow [2021-06-13 09:05:38,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,829 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:38,829 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:38,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 09:05:38,830 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:38,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:38,830 INFO L82 PathProgramCache]: Analyzing trace with hash 903671752, now seen corresponding path program 4 times [2021-06-13 09:05:38,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:38,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627756552] [2021-06-13 09:05:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:38,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:38,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:38,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:38,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:38,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:38,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:38,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:38,907 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:38,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627756552] [2021-06-13 09:05:38,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627756552] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:05:38,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:05:38,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-13 09:05:38,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783716351] [2021-06-13 09:05:38,908 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 09:05:38,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:38,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 09:05:38,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 09:05:38,910 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:38,910 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 43 transitions, 349 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:38,910 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:38,910 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:38,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:39,067 INFO L129 PetriNetUnfolder]: 403/695 cut-off events. [2021-06-13 09:05:39,067 INFO L130 PetriNetUnfolder]: For 2078/2078 co-relation queries the response was YES. [2021-06-13 09:05:39,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2654 conditions, 695 events. 403/695 cut-off events. For 2078/2078 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3171 event pairs, 94 based on Foata normal form. 1/695 useless extension candidates. Maximal degree in co-relation 2497. Up to 295 conditions per place. [2021-06-13 09:05:39,075 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 44 selfloop transitions, 19 changer transitions 0/70 dead transitions. [2021-06-13 09:05:39,075 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 70 transitions, 668 flow [2021-06-13 09:05:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 09:05:39,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-13 09:05:39,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2021-06-13 09:05:39,076 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8090909090909091 [2021-06-13 09:05:39,076 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 89 transitions. [2021-06-13 09:05:39,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 89 transitions. [2021-06-13 09:05:39,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:39,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 89 transitions. [2021-06-13 09:05:39,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,078 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,078 INFO L185 Difference]: Start difference. First operand has 39 places, 43 transitions, 349 flow. Second operand 5 states and 89 transitions. [2021-06-13 09:05:39,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 70 transitions, 668 flow [2021-06-13 09:05:39,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 70 transitions, 648 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-06-13 09:05:39,086 INFO L241 Difference]: Finished difference. Result has 46 places, 52 transitions, 506 flow [2021-06-13 09:05:39,086 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=506, PETRI_PLACES=46, PETRI_TRANSITIONS=52} [2021-06-13 09:05:39,086 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 22 predicate places. [2021-06-13 09:05:39,086 INFO L482 AbstractCegarLoop]: Abstraction has has 46 places, 52 transitions, 506 flow [2021-06-13 09:05:39,086 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,087 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:39,087 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:39,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 09:05:39,087 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:39,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:39,087 INFO L82 PathProgramCache]: Analyzing trace with hash 698372192, now seen corresponding path program 5 times [2021-06-13 09:05:39,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:39,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630582282] [2021-06-13 09:05:39,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:39,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:39,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:39,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:39,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:39,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:39,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630582282] [2021-06-13 09:05:39,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630582282] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:05:39,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:05:39,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-13 09:05:39,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526133865] [2021-06-13 09:05:39,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 09:05:39,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:39,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 09:05:39,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 09:05:39,131 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:39,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 52 transitions, 506 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,132 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:39,132 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:39,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:39,287 INFO L129 PetriNetUnfolder]: 403/714 cut-off events. [2021-06-13 09:05:39,287 INFO L130 PetriNetUnfolder]: For 2716/2718 co-relation queries the response was YES. [2021-06-13 09:05:39,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2919 conditions, 714 events. 403/714 cut-off events. For 2716/2718 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3468 event pairs, 94 based on Foata normal form. 1/715 useless extension candidates. Maximal degree in co-relation 2732. Up to 295 conditions per place. [2021-06-13 09:05:39,295 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 39 selfloop transitions, 25 changer transitions 0/71 dead transitions. [2021-06-13 09:05:39,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 71 transitions, 748 flow [2021-06-13 09:05:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 09:05:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-13 09:05:39,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2021-06-13 09:05:39,296 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8090909090909091 [2021-06-13 09:05:39,297 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 89 transitions. [2021-06-13 09:05:39,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 89 transitions. [2021-06-13 09:05:39,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:39,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 89 transitions. [2021-06-13 09:05:39,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,298 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,298 INFO L185 Difference]: Start difference. First operand has 46 places, 52 transitions, 506 flow. Second operand 5 states and 89 transitions. [2021-06-13 09:05:39,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 71 transitions, 748 flow [2021-06-13 09:05:39,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 71 transitions, 731 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-06-13 09:05:39,308 INFO L241 Difference]: Finished difference. Result has 52 places, 57 transitions, 637 flow [2021-06-13 09:05:39,308 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=637, PETRI_PLACES=52, PETRI_TRANSITIONS=57} [2021-06-13 09:05:39,309 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 28 predicate places. [2021-06-13 09:05:39,309 INFO L482 AbstractCegarLoop]: Abstraction has has 52 places, 57 transitions, 637 flow [2021-06-13 09:05:39,309 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,309 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:39,309 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:39,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-13 09:05:39,309 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:39,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:39,310 INFO L82 PathProgramCache]: Analyzing trace with hash -866520360, now seen corresponding path program 6 times [2021-06-13 09:05:39,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:39,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412950495] [2021-06-13 09:05:39,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:39,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:39,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:39,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:39,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:39,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:39,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412950495] [2021-06-13 09:05:39,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412950495] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:05:39,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:05:39,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-13 09:05:39,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950932112] [2021-06-13 09:05:39,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 09:05:39,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:39,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 09:05:39,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 09:05:39,351 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:39,351 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 57 transitions, 637 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:39,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:39,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:39,514 INFO L129 PetriNetUnfolder]: 403/694 cut-off events. [2021-06-13 09:05:39,514 INFO L130 PetriNetUnfolder]: For 3526/3549 co-relation queries the response was YES. [2021-06-13 09:05:39,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3101 conditions, 694 events. 403/694 cut-off events. For 3526/3549 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3216 event pairs, 76 based on Foata normal form. 1/693 useless extension candidates. Maximal degree in co-relation 2926. Up to 295 conditions per place. [2021-06-13 09:05:39,522 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 44 selfloop transitions, 25 changer transitions 0/76 dead transitions. [2021-06-13 09:05:39,523 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 76 transitions, 896 flow [2021-06-13 09:05:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 09:05:39,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-13 09:05:39,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2021-06-13 09:05:39,524 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8090909090909091 [2021-06-13 09:05:39,524 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 89 transitions. [2021-06-13 09:05:39,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 89 transitions. [2021-06-13 09:05:39,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:39,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 89 transitions. [2021-06-13 09:05:39,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,525 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,525 INFO L185 Difference]: Start difference. First operand has 52 places, 57 transitions, 637 flow. Second operand 5 states and 89 transitions. [2021-06-13 09:05:39,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 76 transitions, 896 flow [2021-06-13 09:05:39,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 866 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-06-13 09:05:39,538 INFO L241 Difference]: Finished difference. Result has 58 places, 62 transitions, 754 flow [2021-06-13 09:05:39,538 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=754, PETRI_PLACES=58, PETRI_TRANSITIONS=62} [2021-06-13 09:05:39,539 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 34 predicate places. [2021-06-13 09:05:39,539 INFO L482 AbstractCegarLoop]: Abstraction has has 58 places, 62 transitions, 754 flow [2021-06-13 09:05:39,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:39,539 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:39,539 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:39,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-13 09:05:39,539 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:39,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:39,540 INFO L82 PathProgramCache]: Analyzing trace with hash -635422692, now seen corresponding path program 1 times [2021-06-13 09:05:39,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:39,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911587353] [2021-06-13 09:05:39,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:39,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,621 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-06-13 09:05:39,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:39,639 INFO L142 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size [2021-06-13 09:05:39,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:39,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:05:39,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:39,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:39,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:39,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:39,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911587353] [2021-06-13 09:05:39,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911587353] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:39,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623467991] [2021-06-13 09:05:39,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:39,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:05:39,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:39,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:39,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:39,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:39,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:39,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:39,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:39,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:39,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:39,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:39,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:39,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:39,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:39,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:39,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:39,876 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size [2021-06-13 09:05:39,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:39,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:39,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:39,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:39,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:39,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,904 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:39,911 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:39,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:39,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:39,922 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:39,923 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:39,925 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-06-13 09:05:39,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:39,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:39,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:39,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:39,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:39,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:39,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:39,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:39,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:39,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:39,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:39,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:39,994 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:39,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:39,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:39,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:39,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623467991] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:39,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:39,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:05:39,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790046271] [2021-06-13 09:05:39,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:05:39,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:39,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:05:39,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:05:39,999 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:40,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 62 transitions, 754 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:40,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:40,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:40,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:40,306 INFO L129 PetriNetUnfolder]: 463/823 cut-off events. [2021-06-13 09:05:40,307 INFO L130 PetriNetUnfolder]: For 4497/4547 co-relation queries the response was YES. [2021-06-13 09:05:40,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3772 conditions, 823 events. 463/823 cut-off events. For 4497/4547 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4139 event pairs, 64 based on Foata normal form. 8/830 useless extension candidates. Maximal degree in co-relation 3526. Up to 319 conditions per place. [2021-06-13 09:05:40,316 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 73 selfloop transitions, 24 changer transitions 1/105 dead transitions. [2021-06-13 09:05:40,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 105 transitions, 1350 flow [2021-06-13 09:05:40,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:05:40,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:05:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:05:40,318 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:05:40,318 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:05:40,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:05:40,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:40,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:05:40,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:40,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:40,319 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:40,319 INFO L185 Difference]: Start difference. First operand has 58 places, 62 transitions, 754 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:05:40,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 105 transitions, 1350 flow [2021-06-13 09:05:40,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 105 transitions, 1310 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-06-13 09:05:40,337 INFO L241 Difference]: Finished difference. Result has 67 places, 70 transitions, 916 flow [2021-06-13 09:05:40,338 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=916, PETRI_PLACES=67, PETRI_TRANSITIONS=70} [2021-06-13 09:05:40,338 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 43 predicate places. [2021-06-13 09:05:40,338 INFO L482 AbstractCegarLoop]: Abstraction has has 67 places, 70 transitions, 916 flow [2021-06-13 09:05:40,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:40,338 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:40,338 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:40,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-13 09:05:40,553 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:40,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:40,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1843792588, now seen corresponding path program 1 times [2021-06-13 09:05:40,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:40,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684455963] [2021-06-13 09:05:40,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:40,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:40,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:40,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:40,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:40,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:40,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684455963] [2021-06-13 09:05:40,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684455963] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:40,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185059847] [2021-06-13 09:05:40,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:40,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:05:40,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:40,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:40,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:40,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:05:40,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:40,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:40,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:05:40,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:40,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:40,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:40,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:40,703 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:05:40,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:40,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:40,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:40,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:05:40,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:40,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,712 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:40,713 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:40,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:40,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:40,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:40,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,718 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:40,719 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:40,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:40,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:40,723 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:40,728 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:40,733 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-06-13 09:05:40,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:40,785 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-06-13 09:05:40,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:40,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:40,787 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185059847] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:40,787 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:40,787 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2021-06-13 09:05:40,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013978753] [2021-06-13 09:05:40,788 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:05:40,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:40,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:05:40,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:05:40,789 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:40,789 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 70 transitions, 916 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:40,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:40,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:40,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:41,135 INFO L129 PetriNetUnfolder]: 519/910 cut-off events. [2021-06-13 09:05:41,135 INFO L130 PetriNetUnfolder]: For 5876/5899 co-relation queries the response was YES. [2021-06-13 09:05:41,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4403 conditions, 910 events. 519/910 cut-off events. For 5876/5899 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4530 event pairs, 66 based on Foata normal form. 3/911 useless extension candidates. Maximal degree in co-relation 4137. Up to 400 conditions per place. [2021-06-13 09:05:41,145 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 69 selfloop transitions, 30 changer transitions 11/117 dead transitions. [2021-06-13 09:05:41,145 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 117 transitions, 1571 flow [2021-06-13 09:05:41,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 09:05:41,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 09:05:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 139 transitions. [2021-06-13 09:05:41,146 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7897727272727273 [2021-06-13 09:05:41,146 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 139 transitions. [2021-06-13 09:05:41,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 139 transitions. [2021-06-13 09:05:41,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:41,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 139 transitions. [2021-06-13 09:05:41,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.375) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:41,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:41,147 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:41,148 INFO L185 Difference]: Start difference. First operand has 67 places, 70 transitions, 916 flow. Second operand 8 states and 139 transitions. [2021-06-13 09:05:41,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 117 transitions, 1571 flow [2021-06-13 09:05:41,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 117 transitions, 1521 flow, removed 9 selfloop flow, removed 2 redundant places. [2021-06-13 09:05:41,167 INFO L241 Difference]: Finished difference. Result has 77 places, 79 transitions, 1121 flow [2021-06-13 09:05:41,167 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=877, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1121, PETRI_PLACES=77, PETRI_TRANSITIONS=79} [2021-06-13 09:05:41,167 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 53 predicate places. [2021-06-13 09:05:41,167 INFO L482 AbstractCegarLoop]: Abstraction has has 77 places, 79 transitions, 1121 flow [2021-06-13 09:05:41,168 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:41,168 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:41,168 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:41,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-13 09:05:41,381 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:41,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:41,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1667728148, now seen corresponding path program 2 times [2021-06-13 09:05:41,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:41,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567712436] [2021-06-13 09:05:41,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:41,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:41,432 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-06-13 09:05:41,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:41,444 INFO L142 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size [2021-06-13 09:05:41,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:41,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:05:41,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:41,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:41,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:41,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:41,500 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:41,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567712436] [2021-06-13 09:05:41,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567712436] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:41,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574884626] [2021-06-13 09:05:41,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:41,549 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:05:41,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:41,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:05:41,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:41,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:41,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:41,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:41,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:41,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:41,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:41,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:41,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:41,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:41,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:41,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:41,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:41,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:41,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:41,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:41,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:41,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:41,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:41,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:41,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:41,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:41,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:41,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:41,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:41,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:41,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:41,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:41,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:41,648 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-06-13 09:05:41,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:05:41,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:41,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:41,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 09:05:41,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:41,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,661 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:41,662 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:41,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:41,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:41,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:41,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,667 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:41,668 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:41,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:41,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:41,670 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:41,671 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:41,672 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-06-13 09:05:41,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:41,708 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:41,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:41,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:41,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:41,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:41,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:41,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:41,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574884626] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:41,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:41,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:05:41,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984467418] [2021-06-13 09:05:41,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:05:41,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:41,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:05:41,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:05:41,713 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:41,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 79 transitions, 1121 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:41,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:41,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:41,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:42,026 INFO L129 PetriNetUnfolder]: 493/867 cut-off events. [2021-06-13 09:05:42,026 INFO L130 PetriNetUnfolder]: For 6910/6937 co-relation queries the response was YES. [2021-06-13 09:05:42,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4746 conditions, 867 events. 493/867 cut-off events. For 6910/6937 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4369 event pairs, 82 based on Foata normal form. 6/872 useless extension candidates. Maximal degree in co-relation 4464. Up to 351 conditions per place. [2021-06-13 09:05:42,037 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 72 selfloop transitions, 33 changer transitions 1/113 dead transitions. [2021-06-13 09:05:42,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 113 transitions, 1684 flow [2021-06-13 09:05:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:05:42,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:05:42,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions. [2021-06-13 09:05:42,039 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2021-06-13 09:05:42,039 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 121 transitions. [2021-06-13 09:05:42,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 121 transitions. [2021-06-13 09:05:42,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:42,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 121 transitions. [2021-06-13 09:05:42,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:42,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:42,041 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:42,041 INFO L185 Difference]: Start difference. First operand has 77 places, 79 transitions, 1121 flow. Second operand 7 states and 121 transitions. [2021-06-13 09:05:42,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 113 transitions, 1684 flow [2021-06-13 09:05:42,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 113 transitions, 1617 flow, removed 18 selfloop flow, removed 3 redundant places. [2021-06-13 09:05:42,065 INFO L241 Difference]: Finished difference. Result has 82 places, 83 transitions, 1217 flow [2021-06-13 09:05:42,066 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1217, PETRI_PLACES=82, PETRI_TRANSITIONS=83} [2021-06-13 09:05:42,066 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 58 predicate places. [2021-06-13 09:05:42,066 INFO L482 AbstractCegarLoop]: Abstraction has has 82 places, 83 transitions, 1217 flow [2021-06-13 09:05:42,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:42,066 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:42,066 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:42,290 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-13 09:05:42,290 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:42,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:42,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1222149758, now seen corresponding path program 2 times [2021-06-13 09:05:42,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:42,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914932372] [2021-06-13 09:05:42,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:42,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:42,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:42,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:42,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:42,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:42,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:42,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:42,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:42,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914932372] [2021-06-13 09:05:42,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914932372] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:42,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543135413] [2021-06-13 09:05:42,347 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:42,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:05:42,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:42,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:05:42,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:42,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:42,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:42,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:42,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:42,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,418 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-06-13 09:05:42,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:42,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:42,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:05:42,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:42,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:42,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,431 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:42,432 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:42,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:42,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:42,437 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:42,438 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:42,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:42,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:42,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:42,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:42,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:42,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:42,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:05:42,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:42,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:42,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:42,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:05:42,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:42,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,504 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:42,506 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:42,507 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:05:42,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:42,530 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-06-13 09:05:42,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:42,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:42,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:42,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:42,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:42,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:42,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543135413] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:42,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:42,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-06-13 09:05:42,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717474499] [2021-06-13 09:05:42,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:05:42,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:42,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:05:42,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:05:42,534 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:42,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 83 transitions, 1217 flow. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:42,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:42,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:42,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:43,152 INFO L129 PetriNetUnfolder]: 583/1066 cut-off events. [2021-06-13 09:05:43,153 INFO L130 PetriNetUnfolder]: For 8778/8782 co-relation queries the response was YES. [2021-06-13 09:05:43,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5764 conditions, 1066 events. 583/1066 cut-off events. For 8778/8782 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5884 event pairs, 86 based on Foata normal form. 6/1072 useless extension candidates. Maximal degree in co-relation 5393. Up to 421 conditions per place. [2021-06-13 09:05:43,166 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 95 selfloop transitions, 46 changer transitions 19/167 dead transitions. [2021-06-13 09:05:43,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 167 transitions, 2442 flow [2021-06-13 09:05:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 09:05:43,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 09:05:43,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 219 transitions. [2021-06-13 09:05:43,167 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7657342657342657 [2021-06-13 09:05:43,167 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 219 transitions. [2021-06-13 09:05:43,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 219 transitions. [2021-06-13 09:05:43,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:43,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 219 transitions. [2021-06-13 09:05:43,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 16.846153846153847) internal successors, (219), 13 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:43,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 22.0) internal successors, (308), 14 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:43,169 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 22.0) internal successors, (308), 14 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:43,169 INFO L185 Difference]: Start difference. First operand has 82 places, 83 transitions, 1217 flow. Second operand 13 states and 219 transitions. [2021-06-13 09:05:43,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 167 transitions, 2442 flow [2021-06-13 09:05:43,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 167 transitions, 2367 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-06-13 09:05:43,200 INFO L241 Difference]: Finished difference. Result has 97 places, 100 transitions, 1533 flow [2021-06-13 09:05:43,201 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=1152, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1533, PETRI_PLACES=97, PETRI_TRANSITIONS=100} [2021-06-13 09:05:43,201 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 73 predicate places. [2021-06-13 09:05:43,201 INFO L482 AbstractCegarLoop]: Abstraction has has 97 places, 100 transitions, 1533 flow [2021-06-13 09:05:43,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:43,201 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:43,201 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:43,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-13 09:05:43,417 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:43,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:43,417 INFO L82 PathProgramCache]: Analyzing trace with hash 809115702, now seen corresponding path program 1 times [2021-06-13 09:05:43,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:43,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623414520] [2021-06-13 09:05:43,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:43,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:43,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:43,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:43,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:43,473 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:43,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623414520] [2021-06-13 09:05:43,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623414520] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:43,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328575879] [2021-06-13 09:05:43,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:43,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:05:43,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:43,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:43,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:43,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:43,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:43,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:43,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:43,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:43,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:43,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:43,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:43,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:43,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:43,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:43,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:43,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:43,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:43,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:43,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:43,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:43,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:43,570 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:05:43,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:43,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:43,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:43,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:05:43,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:43,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,577 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:43,579 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:43,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:43,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:43,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:43,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,582 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:43,583 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:43,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:43,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:43,586 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:43,588 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:43,589 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:05:43,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:43,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:43,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:43,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:43,608 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 09:05:43,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:43,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:43,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:43,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328575879] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:43,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:43,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-06-13 09:05:43,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155769348] [2021-06-13 09:05:43,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:05:43,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:43,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:05:43,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:05:43,622 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:43,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 100 transitions, 1533 flow. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:43,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:43,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:43,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:44,028 INFO L129 PetriNetUnfolder]: 650/1188 cut-off events. [2021-06-13 09:05:44,028 INFO L130 PetriNetUnfolder]: For 11567/11594 co-relation queries the response was YES. [2021-06-13 09:05:44,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7038 conditions, 1188 events. 650/1188 cut-off events. For 11567/11594 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6650 event pairs, 111 based on Foata normal form. 9/1195 useless extension candidates. Maximal degree in co-relation 6578. Up to 447 conditions per place. [2021-06-13 09:05:44,043 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 76 selfloop transitions, 50 changer transitions 13/146 dead transitions. [2021-06-13 09:05:44,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 146 transitions, 2330 flow [2021-06-13 09:05:44,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 09:05:44,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 09:05:44,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 141 transitions. [2021-06-13 09:05:44,044 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8011363636363636 [2021-06-13 09:05:44,044 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 141 transitions. [2021-06-13 09:05:44,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 141 transitions. [2021-06-13 09:05:44,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:44,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 141 transitions. [2021-06-13 09:05:44,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:44,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:44,045 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:44,045 INFO L185 Difference]: Start difference. First operand has 97 places, 100 transitions, 1533 flow. Second operand 8 states and 141 transitions. [2021-06-13 09:05:44,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 146 transitions, 2330 flow [2021-06-13 09:05:44,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 146 transitions, 2120 flow, removed 84 selfloop flow, removed 3 redundant places. [2021-06-13 09:05:44,087 INFO L241 Difference]: Finished difference. Result has 103 places, 110 transitions, 1665 flow [2021-06-13 09:05:44,087 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=1388, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1665, PETRI_PLACES=103, PETRI_TRANSITIONS=110} [2021-06-13 09:05:44,087 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 79 predicate places. [2021-06-13 09:05:44,088 INFO L482 AbstractCegarLoop]: Abstraction has has 103 places, 110 transitions, 1665 flow [2021-06-13 09:05:44,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:44,088 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:44,088 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:44,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-06-13 09:05:44,301 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:44,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:44,301 INFO L82 PathProgramCache]: Analyzing trace with hash -2046497844, now seen corresponding path program 2 times [2021-06-13 09:05:44,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:44,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722800777] [2021-06-13 09:05:44,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:44,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:44,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:44,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:44,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:44,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:44,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722800777] [2021-06-13 09:05:44,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722800777] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:44,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355740892] [2021-06-13 09:05:44,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:44,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:05:44,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:44,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:05:44,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:44,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:44,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:44,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:05:44,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:44,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:44,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:05:44,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:44,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:44,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:44,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:44,416 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:05:44,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:44,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:44,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:44,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:05:44,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:44,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,428 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:44,429 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:44,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:44,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:44,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:44,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,433 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:44,434 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:44,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:44,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:44,436 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:44,437 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:44,437 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:05:44,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:44,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:44,454 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 09:05:44,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:44,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:44,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:44,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355740892] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:44,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:44,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2021-06-13 09:05:44,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480376190] [2021-06-13 09:05:44,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:05:44,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:44,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:05:44,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:05:44,457 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:44,458 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 110 transitions, 1665 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:44,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:44,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:44,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:44,866 INFO L129 PetriNetUnfolder]: 686/1216 cut-off events. [2021-06-13 09:05:44,866 INFO L130 PetriNetUnfolder]: For 11994/12020 co-relation queries the response was YES. [2021-06-13 09:05:44,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7568 conditions, 1216 events. 686/1216 cut-off events. For 11994/12020 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 6499 event pairs, 76 based on Foata normal form. 4/1218 useless extension candidates. Maximal degree in co-relation 7197. Up to 448 conditions per place. [2021-06-13 09:05:44,883 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 116 selfloop transitions, 39 changer transitions 11/173 dead transitions. [2021-06-13 09:05:44,883 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 173 transitions, 2755 flow [2021-06-13 09:05:44,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 09:05:44,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 09:05:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 138 transitions. [2021-06-13 09:05:44,885 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7840909090909091 [2021-06-13 09:05:44,885 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 138 transitions. [2021-06-13 09:05:44,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 138 transitions. [2021-06-13 09:05:44,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:44,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 138 transitions. [2021-06-13 09:05:44,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.25) internal successors, (138), 8 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:44,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:44,886 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:44,886 INFO L185 Difference]: Start difference. First operand has 103 places, 110 transitions, 1665 flow. Second operand 8 states and 138 transitions. [2021-06-13 09:05:44,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 173 transitions, 2755 flow [2021-06-13 09:05:44,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 173 transitions, 2603 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-06-13 09:05:44,938 INFO L241 Difference]: Finished difference. Result has 110 places, 122 transitions, 1880 flow [2021-06-13 09:05:44,938 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=1547, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1880, PETRI_PLACES=110, PETRI_TRANSITIONS=122} [2021-06-13 09:05:44,939 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 86 predicate places. [2021-06-13 09:05:44,939 INFO L482 AbstractCegarLoop]: Abstraction has has 110 places, 122 transitions, 1880 flow [2021-06-13 09:05:44,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:44,939 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:44,940 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:45,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:45,153 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:45,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:45,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1473536390, now seen corresponding path program 3 times [2021-06-13 09:05:45,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:45,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669075709] [2021-06-13 09:05:45,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:45,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:45,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:45,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:45,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:45,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:45,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669075709] [2021-06-13 09:05:45,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669075709] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:45,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498235432] [2021-06-13 09:05:45,200 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:45,249 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:05:45,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:45,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:05:45,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:45,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:45,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:45,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:45,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:45,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:45,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:45,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:45,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:45,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:45,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:45,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:45,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:45,269 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-06-13 09:05:45,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:45,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:45,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:05:45,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:45,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:45,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,274 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:45,277 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:45,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,280 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:45,281 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:45,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:45,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:45,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:45,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:45,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:45,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:45,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:45,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:45,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:45,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:45,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:45,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:45,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:45,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,335 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:45,336 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:45,337 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-06-13 09:05:45,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:45,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:45,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:45,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:45,355 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 09:05:45,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:45,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:45,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:45,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:45,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:45,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:45,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498235432] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:45,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:45,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-06-13 09:05:45,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133053639] [2021-06-13 09:05:45,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:05:45,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:45,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:05:45,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:05:45,359 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:45,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 122 transitions, 1880 flow. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:45,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:45,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:45,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:46,159 INFO L129 PetriNetUnfolder]: 689/1299 cut-off events. [2021-06-13 09:05:46,159 INFO L130 PetriNetUnfolder]: For 14591/14617 co-relation queries the response was YES. [2021-06-13 09:05:46,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8128 conditions, 1299 events. 689/1299 cut-off events. For 14591/14617 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7786 event pairs, 98 based on Foata normal form. 10/1308 useless extension candidates. Maximal degree in co-relation 7723. Up to 473 conditions per place. [2021-06-13 09:05:46,178 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 93 selfloop transitions, 79 changer transitions 25/204 dead transitions. [2021-06-13 09:05:46,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 204 transitions, 3327 flow [2021-06-13 09:05:46,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 09:05:46,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-06-13 09:05:46,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 273 transitions. [2021-06-13 09:05:46,180 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6893939393939394 [2021-06-13 09:05:46,180 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 273 transitions. [2021-06-13 09:05:46,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 273 transitions. [2021-06-13 09:05:46,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:46,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 273 transitions. [2021-06-13 09:05:46,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 15.166666666666666) internal successors, (273), 18 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:46,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 22.0) internal successors, (418), 19 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:46,182 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 22.0) internal successors, (418), 19 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:46,182 INFO L185 Difference]: Start difference. First operand has 110 places, 122 transitions, 1880 flow. Second operand 18 states and 273 transitions. [2021-06-13 09:05:46,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 204 transitions, 3327 flow [2021-06-13 09:05:46,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 204 transitions, 3209 flow, removed 24 selfloop flow, removed 3 redundant places. [2021-06-13 09:05:46,238 INFO L241 Difference]: Finished difference. Result has 136 places, 137 transitions, 2282 flow [2021-06-13 09:05:46,239 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=1801, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2282, PETRI_PLACES=136, PETRI_TRANSITIONS=137} [2021-06-13 09:05:46,239 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 112 predicate places. [2021-06-13 09:05:46,239 INFO L482 AbstractCegarLoop]: Abstraction has has 136 places, 137 transitions, 2282 flow [2021-06-13 09:05:46,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:46,239 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:46,239 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:46,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:46,464 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:46,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:46,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1674953838, now seen corresponding path program 3 times [2021-06-13 09:05:46,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:46,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344023733] [2021-06-13 09:05:46,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:46,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:46,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:46,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:46,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:46,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:46,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:46,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:46,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344023733] [2021-06-13 09:05:46,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344023733] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:46,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582206091] [2021-06-13 09:05:46,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:46,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:05:46,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:46,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-13 09:05:46,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:46,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:46,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:46,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:46,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:46,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:46,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:46,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:46,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:46,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:46,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:46,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:46,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:46,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:46,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:46,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:46,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:46,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:46,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:46,594 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size [2021-06-13 09:05:46,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:46,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:46,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:46,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:46,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:46,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,604 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:46,605 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:46,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:46,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:46,609 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:46,610 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:46,611 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-06-13 09:05:46,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:46,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:46,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:46,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:46,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:46,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:46,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:46,645 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.6 percent of original size [2021-06-13 09:05:46,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-13 09:05:46,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:46,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:05:46,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:46,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:46,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,655 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:46,656 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:46,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:46,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:46,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:46,659 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-13 09:05:46,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:46,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:46,670 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:46,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:46,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:46,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:46,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:46,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:46,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582206091] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:46,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:46,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10 [2021-06-13 09:05:46,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620505746] [2021-06-13 09:05:46,673 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:05:46,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:46,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:05:46,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:05:46,673 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:46,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 137 transitions, 2282 flow. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:46,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:46,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:46,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:47,196 INFO L129 PetriNetUnfolder]: 719/1307 cut-off events. [2021-06-13 09:05:47,197 INFO L130 PetriNetUnfolder]: For 18566/18596 co-relation queries the response was YES. [2021-06-13 09:05:47,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9150 conditions, 1307 events. 719/1307 cut-off events. For 18566/18596 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7406 event pairs, 128 based on Foata normal form. 9/1316 useless extension candidates. Maximal degree in co-relation 8881. Up to 573 conditions per place. [2021-06-13 09:05:47,213 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 110 selfloop transitions, 69 changer transitions 6/192 dead transitions. [2021-06-13 09:05:47,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 192 transitions, 3352 flow [2021-06-13 09:05:47,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 09:05:47,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 09:05:47,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 181 transitions. [2021-06-13 09:05:47,214 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7479338842975206 [2021-06-13 09:05:47,215 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 181 transitions. [2021-06-13 09:05:47,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 181 transitions. [2021-06-13 09:05:47,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:47,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 181 transitions. [2021-06-13 09:05:47,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 16.454545454545453) internal successors, (181), 11 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:47,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:47,216 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:47,216 INFO L185 Difference]: Start difference. First operand has 136 places, 137 transitions, 2282 flow. Second operand 11 states and 181 transitions. [2021-06-13 09:05:47,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 192 transitions, 3352 flow [2021-06-13 09:05:47,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 192 transitions, 3131 flow, removed 46 selfloop flow, removed 8 redundant places. [2021-06-13 09:05:47,281 INFO L241 Difference]: Finished difference. Result has 140 places, 151 transitions, 2524 flow [2021-06-13 09:05:47,282 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=2073, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2524, PETRI_PLACES=140, PETRI_TRANSITIONS=151} [2021-06-13 09:05:47,282 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 116 predicate places. [2021-06-13 09:05:47,282 INFO L482 AbstractCegarLoop]: Abstraction has has 140 places, 151 transitions, 2524 flow [2021-06-13 09:05:47,282 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:47,282 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:47,282 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:47,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-06-13 09:05:47,488 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:47,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:47,488 INFO L82 PathProgramCache]: Analyzing trace with hash -723557356, now seen corresponding path program 4 times [2021-06-13 09:05:47,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:47,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165006834] [2021-06-13 09:05:47,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:47,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:47,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:47,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:47,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:47,532 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:47,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165006834] [2021-06-13 09:05:47,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165006834] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:47,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598095223] [2021-06-13 09:05:47,532 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:47,565 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:05:47,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:47,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:05:47,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:47,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:47,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:47,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:47,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:47,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:47,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:47,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:47,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:47,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:47,604 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:05:47,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:47,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:47,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:05:47,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:47,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:47,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,609 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:47,610 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:47,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:47,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:47,613 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:47,614 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:47,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:47,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:47,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:47,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:47,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:47,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:47,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:47,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:47,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:47,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:47,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:05:47,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:47,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:47,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:47,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:47,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:47,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:47,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:47,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:47,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,642 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:47,643 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:47,644 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-06-13 09:05:47,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:47,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:47,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:47,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:47,659 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 09:05:47,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:47,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:47,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:47,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:47,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:47,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:47,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598095223] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:47,661 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:47,661 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-06-13 09:05:47,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513974396] [2021-06-13 09:05:47,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:05:47,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:47,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:05:47,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:05:47,662 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:47,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 151 transitions, 2524 flow. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:47,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:47,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:47,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:48,224 INFO L129 PetriNetUnfolder]: 731/1319 cut-off events. [2021-06-13 09:05:48,224 INFO L130 PetriNetUnfolder]: For 20387/20424 co-relation queries the response was YES. [2021-06-13 09:05:48,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9707 conditions, 1319 events. 731/1319 cut-off events. For 20387/20424 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7463 event pairs, 145 based on Foata normal form. 11/1330 useless extension candidates. Maximal degree in co-relation 9465. Up to 569 conditions per place. [2021-06-13 09:05:48,241 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 99 selfloop transitions, 74 changer transitions 27/207 dead transitions. [2021-06-13 09:05:48,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 207 transitions, 3633 flow [2021-06-13 09:05:48,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 09:05:48,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 09:05:48,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 204 transitions. [2021-06-13 09:05:48,243 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7132867132867133 [2021-06-13 09:05:48,243 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 204 transitions. [2021-06-13 09:05:48,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 204 transitions. [2021-06-13 09:05:48,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:48,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 204 transitions. [2021-06-13 09:05:48,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 15.692307692307692) internal successors, (204), 13 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:48,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 22.0) internal successors, (308), 14 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:48,244 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 22.0) internal successors, (308), 14 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:48,245 INFO L185 Difference]: Start difference. First operand has 140 places, 151 transitions, 2524 flow. Second operand 13 states and 204 transitions. [2021-06-13 09:05:48,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 207 transitions, 3633 flow [2021-06-13 09:05:48,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 207 transitions, 3481 flow, removed 44 selfloop flow, removed 4 redundant places. [2021-06-13 09:05:48,306 INFO L241 Difference]: Finished difference. Result has 156 places, 159 transitions, 2751 flow [2021-06-13 09:05:48,307 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=2408, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2751, PETRI_PLACES=156, PETRI_TRANSITIONS=159} [2021-06-13 09:05:48,307 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 132 predicate places. [2021-06-13 09:05:48,307 INFO L482 AbstractCegarLoop]: Abstraction has has 156 places, 159 transitions, 2751 flow [2021-06-13 09:05:48,307 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:48,307 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:48,307 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:48,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-06-13 09:05:48,509 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:48,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:48,510 INFO L82 PathProgramCache]: Analyzing trace with hash 153398572, now seen corresponding path program 4 times [2021-06-13 09:05:48,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:48,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552145628] [2021-06-13 09:05:48,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:48,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:48,542 INFO L142 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size [2021-06-13 09:05:48,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:48,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:48,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-13 09:05:48,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:48,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:48,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:48,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:48,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:48,604 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552145628] [2021-06-13 09:05:48,604 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552145628] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:48,604 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941542902] [2021-06-13 09:05:48,604 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:48,652 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:05:48,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:48,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:05:48,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:48,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:48,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:48,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:48,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:48,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:48,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:48,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:48,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:48,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:48,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:48,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:48,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:48,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:48,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:48,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:48,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:05:48,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:48,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:48,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:05:48,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:48,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:48,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:48,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:48,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:48,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:48,737 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-06-13 09:05:48,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:05:48,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:48,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:48,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 09:05:48,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:48,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,743 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:48,744 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:48,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:48,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:48,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:48,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,753 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:48,755 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:48,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:48,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:48,760 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:48,761 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:48,762 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-06-13 09:05:48,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:48,785 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:48,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:48,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:48,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:48,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:48,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:48,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:48,787 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941542902] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:48,787 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:48,787 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:05:48,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25138363] [2021-06-13 09:05:48,790 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:05:48,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:48,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:05:48,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:05:48,791 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:48,791 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 159 transitions, 2751 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:48,791 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:48,791 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:48,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:49,269 INFO L129 PetriNetUnfolder]: 809/1485 cut-off events. [2021-06-13 09:05:49,269 INFO L130 PetriNetUnfolder]: For 21841/21880 co-relation queries the response was YES. [2021-06-13 09:05:49,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10745 conditions, 1485 events. 809/1485 cut-off events. For 21841/21880 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 8726 event pairs, 115 based on Foata normal form. 8/1493 useless extension candidates. Maximal degree in co-relation 10498. Up to 790 conditions per place. [2021-06-13 09:05:49,288 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 136 selfloop transitions, 64 changer transitions 2/209 dead transitions. [2021-06-13 09:05:49,289 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 209 transitions, 3942 flow [2021-06-13 09:05:49,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:05:49,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:05:49,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:05:49,290 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:05:49,290 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:05:49,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:05:49,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:49,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:05:49,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:49,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:49,291 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:49,291 INFO L185 Difference]: Start difference. First operand has 156 places, 159 transitions, 2751 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:05:49,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 209 transitions, 3942 flow [2021-06-13 09:05:49,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 209 transitions, 3768 flow, removed 40 selfloop flow, removed 7 redundant places. [2021-06-13 09:05:49,369 INFO L241 Difference]: Finished difference. Result has 154 places, 177 transitions, 3189 flow [2021-06-13 09:05:49,369 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=2613, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3189, PETRI_PLACES=154, PETRI_TRANSITIONS=177} [2021-06-13 09:05:49,369 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 130 predicate places. [2021-06-13 09:05:49,369 INFO L482 AbstractCegarLoop]: Abstraction has has 154 places, 177 transitions, 3189 flow [2021-06-13 09:05:49,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:49,370 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:49,370 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:49,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:49,571 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:49,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:49,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1198076952, now seen corresponding path program 5 times [2021-06-13 09:05:49,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:49,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84137122] [2021-06-13 09:05:49,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:49,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,595 INFO L142 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size [2021-06-13 09:05:49,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:49,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:49,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:49,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:49,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:49,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:49,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84137122] [2021-06-13 09:05:49,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84137122] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:49,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739167300] [2021-06-13 09:05:49,655 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:49,691 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:05:49,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:49,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:05:49,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:49,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:49,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:49,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:49,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:49,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:49,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:49,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:49,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:49,719 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:05:49,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:49,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:49,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:49,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:49,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,725 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:49,726 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:49,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:49,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:05:49,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:05:49,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:49,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:49,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:49,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:49,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:49,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:49,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:49,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 09:05:49,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,747 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:49,748 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:49,748 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-06-13 09:05:49,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:49,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:49,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:49,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:49,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:49,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:49,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:49,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:49,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:49,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:49,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:49,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:49,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:49,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:49,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:49,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:49,823 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:49,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:49,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:49,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:49,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739167300] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:49,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:49,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:05:49,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720817475] [2021-06-13 09:05:49,826 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:05:49,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:49,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:05:49,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:05:49,826 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:49,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 177 transitions, 3189 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:49,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:49,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:49,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:50,298 INFO L129 PetriNetUnfolder]: 859/1651 cut-off events. [2021-06-13 09:05:50,298 INFO L130 PetriNetUnfolder]: For 24462/24501 co-relation queries the response was YES. [2021-06-13 09:05:50,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11866 conditions, 1651 events. 859/1651 cut-off events. For 24462/24501 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 10444 event pairs, 118 based on Foata normal form. 8/1659 useless extension candidates. Maximal degree in co-relation 11629. Up to 790 conditions per place. [2021-06-13 09:05:50,319 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 151 selfloop transitions, 70 changer transitions 1/229 dead transitions. [2021-06-13 09:05:50,320 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 229 transitions, 4511 flow [2021-06-13 09:05:50,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:05:50,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:05:50,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 117 transitions. [2021-06-13 09:05:50,321 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7597402597402597 [2021-06-13 09:05:50,321 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 117 transitions. [2021-06-13 09:05:50,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 117 transitions. [2021-06-13 09:05:50,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:50,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 117 transitions. [2021-06-13 09:05:50,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:50,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:50,322 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:50,322 INFO L185 Difference]: Start difference. First operand has 154 places, 177 transitions, 3189 flow. Second operand 7 states and 117 transitions. [2021-06-13 09:05:50,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 229 transitions, 4511 flow [2021-06-13 09:05:50,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 229 transitions, 4457 flow, removed 22 selfloop flow, removed 1 redundant places. [2021-06-13 09:05:50,405 INFO L241 Difference]: Finished difference. Result has 163 places, 186 transitions, 3608 flow [2021-06-13 09:05:50,406 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=3155, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3608, PETRI_PLACES=163, PETRI_TRANSITIONS=186} [2021-06-13 09:05:50,406 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 139 predicate places. [2021-06-13 09:05:50,406 INFO L482 AbstractCegarLoop]: Abstraction has has 163 places, 186 transitions, 3608 flow [2021-06-13 09:05:50,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:50,406 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:50,406 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:50,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-06-13 09:05:50,607 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:50,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:50,607 INFO L82 PathProgramCache]: Analyzing trace with hash -451951056, now seen corresponding path program 6 times [2021-06-13 09:05:50,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:50,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050370653] [2021-06-13 09:05:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:50,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:50,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:50,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:50,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:50,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:50,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:50,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050370653] [2021-06-13 09:05:50,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050370653] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:50,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045588403] [2021-06-13 09:05:50,661 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:50,688 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:05:50,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:50,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-13 09:05:50,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:50,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:50,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:50,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:50,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:50,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:50,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:50,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:50,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:50,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:50,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:50,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:50,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:50,734 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size [2021-06-13 09:05:50,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-13 09:05:50,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:50,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-13 09:05:50,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,751 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:50,752 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:05:50,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:05:50,771 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-06-13 09:05:50,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-13 09:05:50,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:50,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-13 09:05:50,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,799 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:50,800 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,803 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-06-13 09:05:50,804 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,806 INFO L142 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size [2021-06-13 09:05:50,807 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:50,807 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:50,812 INFO L147 QuantifierPusher]: treesize reduction 8, result has 65.2 percent of original size 15 [2021-06-13 09:05:50,812 INFO L147 QuantifierPusher]: treesize reduction 8, result has 70.4 percent of original size 19 [2021-06-13 09:05:50,813 INFO L142 QuantifierPusher]: treesize reduction 8, result has 70.4 percent of original size [2021-06-13 09:05:50,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:50,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:50,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:05:50,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:50,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:05:50,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:50,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,840 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:05:50,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:50,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:50,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:50,865 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:50,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:50,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:50,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:50,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:50,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:50,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:50,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045588403] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:50,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:50,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2021-06-13 09:05:50,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382219862] [2021-06-13 09:05:50,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:05:50,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:50,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:05:50,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:05:50,867 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:50,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 186 transitions, 3608 flow. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:50,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:50,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:50,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:51,405 INFO L129 PetriNetUnfolder]: 883/1769 cut-off events. [2021-06-13 09:05:51,405 INFO L130 PetriNetUnfolder]: For 28795/28799 co-relation queries the response was YES. [2021-06-13 09:05:51,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13154 conditions, 1769 events. 883/1769 cut-off events. For 28795/28799 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 11843 event pairs, 122 based on Foata normal form. 6/1775 useless extension candidates. Maximal degree in co-relation 12870. Up to 796 conditions per place. [2021-06-13 09:05:51,425 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 140 selfloop transitions, 93 changer transitions 20/260 dead transitions. [2021-06-13 09:05:51,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 260 transitions, 5328 flow [2021-06-13 09:05:51,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 09:05:51,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 09:05:51,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 189 transitions. [2021-06-13 09:05:51,427 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7159090909090909 [2021-06-13 09:05:51,427 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 189 transitions. [2021-06-13 09:05:51,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 189 transitions. [2021-06-13 09:05:51,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:51,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 189 transitions. [2021-06-13 09:05:51,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 15.75) internal successors, (189), 12 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:51,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 22.0) internal successors, (286), 13 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:51,429 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 22.0) internal successors, (286), 13 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:51,429 INFO L185 Difference]: Start difference. First operand has 163 places, 186 transitions, 3608 flow. Second operand 12 states and 189 transitions. [2021-06-13 09:05:51,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 260 transitions, 5328 flow [2021-06-13 09:05:51,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 260 transitions, 5236 flow, removed 18 selfloop flow, removed 2 redundant places. [2021-06-13 09:05:51,614 INFO L241 Difference]: Finished difference. Result has 180 places, 211 transitions, 4314 flow [2021-06-13 09:05:51,614 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=3537, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4314, PETRI_PLACES=180, PETRI_TRANSITIONS=211} [2021-06-13 09:05:51,615 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 156 predicate places. [2021-06-13 09:05:51,615 INFO L482 AbstractCegarLoop]: Abstraction has has 180 places, 211 transitions, 4314 flow [2021-06-13 09:05:51,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:51,615 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:51,615 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:51,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-06-13 09:05:51,840 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:51,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:51,840 INFO L82 PathProgramCache]: Analyzing trace with hash -444373318, now seen corresponding path program 7 times [2021-06-13 09:05:51,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:51,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884214180] [2021-06-13 09:05:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:51,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:51,857 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-06-13 09:05:51,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:51,865 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-06-13 09:05:51,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:51,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:05:51,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:51,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:51,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:51,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:51,923 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:51,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884214180] [2021-06-13 09:05:51,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884214180] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:51,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331592949] [2021-06-13 09:05:51,923 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:51,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:05:51,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:51,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:51,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:51,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:51,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:51,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:51,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:51,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:51,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:51,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:51,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:51,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:51,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:51,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:51,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:51,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:51,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:51,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:52,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:52,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:52,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:52,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:52,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:52,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:52,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:52,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:52,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:52,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:52,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:52,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:52,037 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size [2021-06-13 09:05:52,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:52,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:52,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:52,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:52,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:52,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,042 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:52,048 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:52,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:52,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:52,050 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:52,051 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:52,052 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-06-13 09:05:52,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:52,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:52,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:52,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:52,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:52,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:52,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:52,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:52,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:52,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:52,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:52,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:52,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:52,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:52,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:52,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:52,092 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:52,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:52,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:52,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:52,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:52,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:52,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:52,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331592949] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:52,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:52,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:05:52,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972249001] [2021-06-13 09:05:52,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:05:52,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:52,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:05:52,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:05:52,096 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:52,096 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 211 transitions, 4314 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:52,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:52,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:52,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:52,657 INFO L129 PetriNetUnfolder]: 961/1948 cut-off events. [2021-06-13 09:05:52,658 INFO L130 PetriNetUnfolder]: For 38451/38490 co-relation queries the response was YES. [2021-06-13 09:05:52,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15536 conditions, 1948 events. 961/1948 cut-off events. For 38451/38490 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 13444 event pairs, 124 based on Foata normal form. 8/1956 useless extension candidates. Maximal degree in co-relation 15270. Up to 816 conditions per place. [2021-06-13 09:05:52,683 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 172 selfloop transitions, 100 changer transitions 4/283 dead transitions. [2021-06-13 09:05:52,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 283 transitions, 6347 flow [2021-06-13 09:05:52,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:05:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:05:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:05:52,685 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:05:52,685 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:05:52,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:05:52,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:52,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:05:52,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:52,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:52,687 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:52,687 INFO L185 Difference]: Start difference. First operand has 180 places, 211 transitions, 4314 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:05:52,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 283 transitions, 6347 flow [2021-06-13 09:05:52,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 283 transitions, 6130 flow, removed 65 selfloop flow, removed 3 redundant places. [2021-06-13 09:05:52,869 INFO L241 Difference]: Finished difference. Result has 186 places, 239 transitions, 5266 flow [2021-06-13 09:05:52,870 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=4160, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5266, PETRI_PLACES=186, PETRI_TRANSITIONS=239} [2021-06-13 09:05:52,870 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 162 predicate places. [2021-06-13 09:05:52,870 INFO L482 AbstractCegarLoop]: Abstraction has has 186 places, 239 transitions, 5266 flow [2021-06-13 09:05:52,870 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:52,870 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:52,870 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:53,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-06-13 09:05:53,093 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:53,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:53,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1106457768, now seen corresponding path program 3 times [2021-06-13 09:05:53,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:53,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246436905] [2021-06-13 09:05:53,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:53,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:53,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:05:53,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:53,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:53,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:53,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:53,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246436905] [2021-06-13 09:05:53,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246436905] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:53,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318267358] [2021-06-13 09:05:53,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:53,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:05:53,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:53,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:05:53,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:53,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:53,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:53,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:53,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:53,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:53,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:53,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:53,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:53,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:53,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:53,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:53,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:53,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:53,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:53,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:53,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:53,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:53,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:53,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:53,245 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:05:53,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:53,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:53,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:53,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:05:53,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:53,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,259 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:53,260 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:53,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:53,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:53,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:53,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,263 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:53,263 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:53,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:53,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:53,265 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:53,266 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:53,266 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-06-13 09:05:53,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:53,278 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-06-13 09:05:53,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:53,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:53,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:53,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:53,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:53,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:53,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318267358] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:53,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:53,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-06-13 09:05:53,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347972579] [2021-06-13 09:05:53,280 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:05:53,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:53,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:05:53,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:05:53,281 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:53,281 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 239 transitions, 5266 flow. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:53,281 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:53,281 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:53,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:53,873 INFO L129 PetriNetUnfolder]: 987/1974 cut-off events. [2021-06-13 09:05:53,873 INFO L130 PetriNetUnfolder]: For 40317/40321 co-relation queries the response was YES. [2021-06-13 09:05:53,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16118 conditions, 1974 events. 987/1974 cut-off events. For 40317/40321 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 13476 event pairs, 220 based on Foata normal form. 6/1980 useless extension candidates. Maximal degree in co-relation 15841. Up to 1099 conditions per place. [2021-06-13 09:05:53,893 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 172 selfloop transitions, 87 changer transitions 9/275 dead transitions. [2021-06-13 09:05:53,893 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 275 transitions, 6320 flow [2021-06-13 09:05:53,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 09:05:53,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 09:05:53,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 170 transitions. [2021-06-13 09:05:53,895 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-13 09:05:53,895 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 170 transitions. [2021-06-13 09:05:53,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 170 transitions. [2021-06-13 09:05:53,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:53,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 170 transitions. [2021-06-13 09:05:53,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.0) internal successors, (170), 10 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:53,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 22.0) internal successors, (242), 11 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:53,896 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 22.0) internal successors, (242), 11 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:53,896 INFO L185 Difference]: Start difference. First operand has 186 places, 239 transitions, 5266 flow. Second operand 10 states and 170 transitions. [2021-06-13 09:05:53,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 275 transitions, 6320 flow [2021-06-13 09:05:54,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 275 transitions, 6217 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-06-13 09:05:54,058 INFO L241 Difference]: Finished difference. Result has 196 places, 247 transitions, 5506 flow [2021-06-13 09:05:54,059 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=5163, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5506, PETRI_PLACES=196, PETRI_TRANSITIONS=247} [2021-06-13 09:05:54,059 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 172 predicate places. [2021-06-13 09:05:54,059 INFO L482 AbstractCegarLoop]: Abstraction has has 196 places, 247 transitions, 5506 flow [2021-06-13 09:05:54,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:54,059 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:54,059 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:54,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:54,273 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:54,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:54,273 INFO L82 PathProgramCache]: Analyzing trace with hash 261780050, now seen corresponding path program 8 times [2021-06-13 09:05:54,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:54,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318501648] [2021-06-13 09:05:54,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:54,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,310 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-06-13 09:05:54,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:54,318 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-06-13 09:05:54,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:54,332 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-06-13 09:05:54,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:54,343 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.0 percent of original size [2021-06-13 09:05:54,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:05:54,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:54,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:54,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:54,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318501648] [2021-06-13 09:05:54,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318501648] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:54,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923576482] [2021-06-13 09:05:54,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:54,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:05:54,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:54,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:05:54,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:54,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:54,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:54,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:54,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:54,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:54,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:54,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:54,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:54,441 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:05:54,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:54,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:54,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:54,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:54,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,445 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:54,445 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:54,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:05:54,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:05:54,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:54,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:54,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:54,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:05:54,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,466 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:54,467 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:54,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:54,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:54,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:54,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:54,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:54,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:05:54,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:54,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:54,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:54,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:05:54,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:54,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:54,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,492 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:54,493 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:54,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:54,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:54,495 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:54,496 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:54,496 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:05:54,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:54,521 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:54,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:54,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:54,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:54,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923576482] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:54,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:54,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:05:54,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082169244] [2021-06-13 09:05:54,524 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:05:54,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:54,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:05:54,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:05:54,525 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:54,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 247 transitions, 5506 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:54,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:54,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:54,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:55,067 INFO L129 PetriNetUnfolder]: 964/1908 cut-off events. [2021-06-13 09:05:55,067 INFO L130 PetriNetUnfolder]: For 41600/41639 co-relation queries the response was YES. [2021-06-13 09:05:55,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16056 conditions, 1908 events. 964/1908 cut-off events. For 41600/41639 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 12829 event pairs, 115 based on Foata normal form. 7/1915 useless extension candidates. Maximal degree in co-relation 15925. Up to 814 conditions per place. [2021-06-13 09:05:55,086 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 169 selfloop transitions, 98 changer transitions 6/280 dead transitions. [2021-06-13 09:05:55,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 280 transitions, 6546 flow [2021-06-13 09:05:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:05:55,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:05:55,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 115 transitions. [2021-06-13 09:05:55,089 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7467532467532467 [2021-06-13 09:05:55,089 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 115 transitions. [2021-06-13 09:05:55,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 115 transitions. [2021-06-13 09:05:55,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:55,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 115 transitions. [2021-06-13 09:05:55,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:55,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:55,090 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:55,090 INFO L185 Difference]: Start difference. First operand has 196 places, 247 transitions, 5506 flow. Second operand 7 states and 115 transitions. [2021-06-13 09:05:55,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 280 transitions, 6546 flow [2021-06-13 09:05:55,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 280 transitions, 6310 flow, removed 44 selfloop flow, removed 7 redundant places. [2021-06-13 09:05:55,249 INFO L241 Difference]: Finished difference. Result has 195 places, 249 transitions, 5557 flow [2021-06-13 09:05:55,249 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=5278, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5557, PETRI_PLACES=195, PETRI_TRANSITIONS=249} [2021-06-13 09:05:55,249 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 171 predicate places. [2021-06-13 09:05:55,249 INFO L482 AbstractCegarLoop]: Abstraction has has 195 places, 249 transitions, 5557 flow [2021-06-13 09:05:55,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:55,250 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:55,250 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:55,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:55,453 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:55,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:55,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1154710682, now seen corresponding path program 9 times [2021-06-13 09:05:55,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:55,453 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195891199] [2021-06-13 09:05:55,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:55,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:55,474 INFO L142 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-06-13 09:05:55,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:55,480 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-06-13 09:05:55,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:55,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:05:55,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:55,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:55,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:55,532 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:55,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195891199] [2021-06-13 09:05:55,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195891199] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:55,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721931681] [2021-06-13 09:05:55,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:55,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:05:55,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:55,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-13 09:05:55,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:55,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:55,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:55,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:55,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:55,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:55,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:55,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:55,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:55,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:55,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:55,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:55,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:55,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:55,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:55,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:55,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:55,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:55,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:55,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:55,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:55,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:55,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:55,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:55,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:55,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:55,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:55,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:55,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:55,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:55,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:55,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:55,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:55,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:05:55,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:05:55,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:05:55,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:05:55,631 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size [2021-06-13 09:05:55,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-13 09:05:55,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:55,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:55,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-13 09:05:55,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:55,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,635 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:55,637 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:55,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:55,639 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:55,640 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:55,640 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-06-13 09:05:55,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:55,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:55,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:55,657 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.6 percent of original size [2021-06-13 09:05:55,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-13 09:05:55,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:55,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:05:55,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:05:55,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:55,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,663 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:55,663 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:55,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:55,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:55,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:55,665 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-13 09:05:55,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:55,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:55,689 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:55,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:55,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:55,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:55,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:55,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:55,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:55,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721931681] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:55,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:55,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2021-06-13 09:05:55,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302576538] [2021-06-13 09:05:55,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-13 09:05:55,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:55,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-13 09:05:55,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-13 09:05:55,692 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:55,692 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 249 transitions, 5557 flow. Second operand has 13 states, 13 states have (on average 12.23076923076923) internal successors, (159), 13 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:55,692 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:55,692 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:55,692 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:56,183 INFO L129 PetriNetUnfolder]: 977/1931 cut-off events. [2021-06-13 09:05:56,183 INFO L130 PetriNetUnfolder]: For 43316/43355 co-relation queries the response was YES. [2021-06-13 09:05:56,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16280 conditions, 1931 events. 977/1931 cut-off events. For 43316/43355 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 13009 event pairs, 122 based on Foata normal form. 8/1939 useless extension candidates. Maximal degree in co-relation 15997. Up to 820 conditions per place. [2021-06-13 09:05:56,203 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 165 selfloop transitions, 123 changer transitions 4/299 dead transitions. [2021-06-13 09:05:56,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 299 transitions, 7050 flow [2021-06-13 09:05:56,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:05:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:05:56,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:05:56,204 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:05:56,204 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:05:56,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:05:56,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:56,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:05:56,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:56,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:56,205 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:56,205 INFO L185 Difference]: Start difference. First operand has 195 places, 249 transitions, 5557 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:05:56,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 299 transitions, 7050 flow [2021-06-13 09:05:56,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 299 transitions, 6856 flow, removed 28 selfloop flow, removed 4 redundant places. [2021-06-13 09:05:56,369 INFO L241 Difference]: Finished difference. Result has 200 places, 263 transitions, 6136 flow [2021-06-13 09:05:56,370 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=5379, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6136, PETRI_PLACES=200, PETRI_TRANSITIONS=263} [2021-06-13 09:05:56,370 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 176 predicate places. [2021-06-13 09:05:56,370 INFO L482 AbstractCegarLoop]: Abstraction has has 200 places, 263 transitions, 6136 flow [2021-06-13 09:05:56,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 12.23076923076923) internal successors, (159), 13 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:56,370 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:56,370 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:56,584 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:56,585 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:56,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:56,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1685682028, now seen corresponding path program 10 times [2021-06-13 09:05:56,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:56,585 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687164375] [2021-06-13 09:05:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:56,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:56,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:56,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:56,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:56,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:56,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:56,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:56,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687164375] [2021-06-13 09:05:56,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687164375] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:56,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814906458] [2021-06-13 09:05:56,635 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:56,665 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:05:56,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:56,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:05:56,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:56,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:56,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:56,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:56,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:56,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:56,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:56,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:56,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:56,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:56,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:56,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:56,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:56,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:56,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:56,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:56,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:56,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:56,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:56,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:56,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:56,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:56,718 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size [2021-06-13 09:05:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:56,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:56,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:56,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:56,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:56,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,741 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:56,742 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:56,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:56,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:56,745 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:56,745 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:56,746 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-06-13 09:05:56,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:56,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:56,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:05:56,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:56,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:56,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:05:56,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:56,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:56,776 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:56,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:56,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:56,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:56,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:56,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:56,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:56,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814906458] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:56,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:56,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:05:56,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144848553] [2021-06-13 09:05:56,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:05:56,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:56,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:05:56,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:05:56,779 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:56,779 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 263 transitions, 6136 flow. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:56,779 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:56,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:56,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:57,437 INFO L129 PetriNetUnfolder]: 1208/2460 cut-off events. [2021-06-13 09:05:57,437 INFO L130 PetriNetUnfolder]: For 59064/59103 co-relation queries the response was YES. [2021-06-13 09:05:57,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20817 conditions, 2460 events. 1208/2460 cut-off events. For 59064/59103 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 17837 event pairs, 124 based on Foata normal form. 14/2474 useless extension candidates. Maximal degree in co-relation 20528. Up to 1067 conditions per place. [2021-06-13 09:05:57,458 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 200 selfloop transitions, 154 changer transitions 9/370 dead transitions. [2021-06-13 09:05:57,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 370 transitions, 9027 flow [2021-06-13 09:05:57,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 09:05:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 09:05:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 168 transitions. [2021-06-13 09:05:57,459 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7636363636363637 [2021-06-13 09:05:57,459 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 168 transitions. [2021-06-13 09:05:57,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 168 transitions. [2021-06-13 09:05:57,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:57,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 168 transitions. [2021-06-13 09:05:57,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 16.8) internal successors, (168), 10 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:57,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 22.0) internal successors, (242), 11 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:57,460 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 22.0) internal successors, (242), 11 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:57,460 INFO L185 Difference]: Start difference. First operand has 200 places, 263 transitions, 6136 flow. Second operand 10 states and 168 transitions. [2021-06-13 09:05:57,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 370 transitions, 9027 flow [2021-06-13 09:05:57,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 370 transitions, 8890 flow, removed 21 selfloop flow, removed 3 redundant places. [2021-06-13 09:05:57,657 INFO L241 Difference]: Finished difference. Result has 210 places, 309 transitions, 7614 flow [2021-06-13 09:05:57,658 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=6055, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7614, PETRI_PLACES=210, PETRI_TRANSITIONS=309} [2021-06-13 09:05:57,658 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 186 predicate places. [2021-06-13 09:05:57,658 INFO L482 AbstractCegarLoop]: Abstraction has has 210 places, 309 transitions, 7614 flow [2021-06-13 09:05:57,658 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:57,658 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:57,658 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:57,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-06-13 09:05:57,859 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:57,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:57,859 INFO L82 PathProgramCache]: Analyzing trace with hash -515951572, now seen corresponding path program 11 times [2021-06-13 09:05:57,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:57,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828902425] [2021-06-13 09:05:57,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:57,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:57,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:57,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:57,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:57,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:57,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:57,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:57,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828902425] [2021-06-13 09:05:57,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828902425] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:57,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266027810] [2021-06-13 09:05:57,902 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:57,929 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:05:57,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:57,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:05:57,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:57,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:57,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:57,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:57,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:57,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:57,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:57,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:57,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:57,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:05:57,962 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:05:57,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:57,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:57,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:57,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:57,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,965 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:57,965 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:57,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:57,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:05:57,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:05:57,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:57,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:57,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:05:57,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:05:57,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,983 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:57,983 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:57,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:57,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:57,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:57,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:58,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:58,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:58,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:05:58,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:58,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:58,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:58,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:05:58,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:58,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:58,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,011 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:58,011 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:58,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:58,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:58,014 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:58,014 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:58,015 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:05:58,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:58,033 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:58,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:58,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:58,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:58,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:58,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:58,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266027810] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:58,036 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:58,036 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:05:58,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474802400] [2021-06-13 09:05:58,036 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:05:58,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:58,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:05:58,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:05:58,037 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:58,037 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 309 transitions, 7614 flow. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:58,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:58,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:58,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:05:58,924 INFO L129 PetriNetUnfolder]: 1202/2457 cut-off events. [2021-06-13 09:05:58,924 INFO L130 PetriNetUnfolder]: For 68629/68668 co-relation queries the response was YES. [2021-06-13 09:05:58,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22197 conditions, 2457 events. 1202/2457 cut-off events. For 68629/68668 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 17904 event pairs, 116 based on Foata normal form. 13/2470 useless extension candidates. Maximal degree in co-relation 21892. Up to 1067 conditions per place. [2021-06-13 09:05:58,954 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 199 selfloop transitions, 178 changer transitions 15/399 dead transitions. [2021-06-13 09:05:58,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 399 transitions, 10166 flow [2021-06-13 09:05:58,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 09:05:58,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 09:05:58,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 209 transitions. [2021-06-13 09:05:58,957 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7307692307692307 [2021-06-13 09:05:58,957 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 209 transitions. [2021-06-13 09:05:58,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 209 transitions. [2021-06-13 09:05:58,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:05:58,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 209 transitions. [2021-06-13 09:05:58,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 16.076923076923077) internal successors, (209), 13 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:58,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 22.0) internal successors, (308), 14 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:58,958 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 22.0) internal successors, (308), 14 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:58,958 INFO L185 Difference]: Start difference. First operand has 210 places, 309 transitions, 7614 flow. Second operand 13 states and 209 transitions. [2021-06-13 09:05:58,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 399 transitions, 10166 flow [2021-06-13 09:05:59,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 399 transitions, 10031 flow, removed 61 selfloop flow, removed 1 redundant places. [2021-06-13 09:05:59,208 INFO L241 Difference]: Finished difference. Result has 228 places, 341 transitions, 8825 flow [2021-06-13 09:05:59,208 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=7544, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8825, PETRI_PLACES=228, PETRI_TRANSITIONS=341} [2021-06-13 09:05:59,208 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 204 predicate places. [2021-06-13 09:05:59,208 INFO L482 AbstractCegarLoop]: Abstraction has has 228 places, 341 transitions, 8825 flow [2021-06-13 09:05:59,209 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:59,209 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:05:59,209 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:05:59,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2021-06-13 09:05:59,409 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:05:59,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:05:59,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1847264978, now seen corresponding path program 12 times [2021-06-13 09:05:59,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:05:59,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333392963] [2021-06-13 09:05:59,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:05:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:05:59,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:59,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:59,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:05:59,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:59,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:59,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:59,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:05:59,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333392963] [2021-06-13 09:05:59,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333392963] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:59,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409004103] [2021-06-13 09:05:59,470 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:05:59,496 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:05:59,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:05:59,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:05:59,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:05:59,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:59,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:59,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:59,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:59,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:05:59,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:59,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:59,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:59,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:05:59,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:59,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:59,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:59,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:05:59,534 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-06-13 09:05:59,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:05:59,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:59,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:05:59,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:05:59,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:59,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,538 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:05:59,539 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:59,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:59,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:59,542 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:59,542 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:59,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:59,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:59,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:59,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:59,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:59,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:59,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:05:59,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:59,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:59,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:05:59,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:59,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:59,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:05:59,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:05:59,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:05:59,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:59,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,570 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:59,571 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:59,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:59,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:05:59,573 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:05:59,573 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:05:59,575 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:05:59,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:05:59,589 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:05:59,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:59,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:59,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:59,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:05:59,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:05:59,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:05:59,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409004103] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:05:59,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:05:59,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:05:59,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196463194] [2021-06-13 09:05:59,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:05:59,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:05:59,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:05:59,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:05:59,592 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:05:59,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 341 transitions, 8825 flow. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:05:59,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:05:59,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:05:59,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:00,119 INFO L129 PetriNetUnfolder]: 1184/2381 cut-off events. [2021-06-13 09:06:00,119 INFO L130 PetriNetUnfolder]: For 74918/74957 co-relation queries the response was YES. [2021-06-13 09:06:00,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22712 conditions, 2381 events. 1184/2381 cut-off events. For 74918/74957 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 16971 event pairs, 146 based on Foata normal form. 8/2389 useless extension candidates. Maximal degree in co-relation 22393. Up to 1067 conditions per place. [2021-06-13 09:06:00,145 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 204 selfloop transitions, 156 changer transitions 6/373 dead transitions. [2021-06-13 09:06:00,145 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 373 transitions, 10129 flow [2021-06-13 09:06:00,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:00,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:00,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 116 transitions. [2021-06-13 09:06:00,147 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7532467532467533 [2021-06-13 09:06:00,147 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 116 transitions. [2021-06-13 09:06:00,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 116 transitions. [2021-06-13 09:06:00,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:00,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 116 transitions. [2021-06-13 09:06:00,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:00,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:00,148 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:00,148 INFO L185 Difference]: Start difference. First operand has 228 places, 341 transitions, 8825 flow. Second operand 7 states and 116 transitions. [2021-06-13 09:06:00,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 373 transitions, 10129 flow [2021-06-13 09:06:00,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 373 transitions, 9929 flow, removed 95 selfloop flow, removed 2 redundant places. [2021-06-13 09:06:00,405 INFO L241 Difference]: Finished difference. Result has 234 places, 347 transitions, 9155 flow [2021-06-13 09:06:00,406 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=8663, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9155, PETRI_PLACES=234, PETRI_TRANSITIONS=347} [2021-06-13 09:06:00,406 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 210 predicate places. [2021-06-13 09:06:00,406 INFO L482 AbstractCegarLoop]: Abstraction has has 234 places, 347 transitions, 9155 flow [2021-06-13 09:06:00,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:00,406 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:00,406 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:00,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2021-06-13 09:06:00,611 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:00,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:00,612 INFO L82 PathProgramCache]: Analyzing trace with hash -2038712850, now seen corresponding path program 4 times [2021-06-13 09:06:00,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:00,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263191531] [2021-06-13 09:06:00,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:00,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:00,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:00,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:00,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:00,645 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:00,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263191531] [2021-06-13 09:06:00,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263191531] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:00,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519565827] [2021-06-13 09:06:00,645 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:00,672 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:06:00,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:00,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:00,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:00,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:00,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:00,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:00,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:00,691 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:06:00,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:00,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:00,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:00,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:00,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:00,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,697 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:00,698 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:00,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:00,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:00,701 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:00,701 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:00,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:00,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:00,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:00,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:00,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:00,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:00,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:00,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:00,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:00,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:00,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:00,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,720 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:00,720 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:00,721 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:06:00,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:00,738 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-06-13 09:06:00,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:00,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:00,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519565827] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:00,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:00,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2021-06-13 09:06:00,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073387126] [2021-06-13 09:06:00,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:06:00,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:00,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:06:00,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:06:00,740 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:00,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 347 transitions, 9155 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:00,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:00,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:00,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:01,412 INFO L129 PetriNetUnfolder]: 1260/2513 cut-off events. [2021-06-13 09:06:01,413 INFO L130 PetriNetUnfolder]: For 76995/77034 co-relation queries the response was YES. [2021-06-13 09:06:01,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23920 conditions, 2513 events. 1260/2513 cut-off events. For 76995/77034 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 18011 event pairs, 152 based on Foata normal form. 6/2519 useless extension candidates. Maximal degree in co-relation 23601. Up to 1597 conditions per place. [2021-06-13 09:06:01,441 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 339 selfloop transitions, 68 changer transitions 27/441 dead transitions. [2021-06-13 09:06:01,442 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 441 transitions, 11700 flow [2021-06-13 09:06:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 09:06:01,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 09:06:01,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 197 transitions. [2021-06-13 09:06:01,442 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7462121212121212 [2021-06-13 09:06:01,443 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 197 transitions. [2021-06-13 09:06:01,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 197 transitions. [2021-06-13 09:06:01,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:01,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 197 transitions. [2021-06-13 09:06:01,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 16.416666666666668) internal successors, (197), 12 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:01,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 22.0) internal successors, (286), 13 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:01,444 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 22.0) internal successors, (286), 13 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:01,444 INFO L185 Difference]: Start difference. First operand has 234 places, 347 transitions, 9155 flow. Second operand 12 states and 197 transitions. [2021-06-13 09:06:01,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 441 transitions, 11700 flow [2021-06-13 09:06:01,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 441 transitions, 11385 flow, removed 20 selfloop flow, removed 6 redundant places. [2021-06-13 09:06:01,779 INFO L241 Difference]: Finished difference. Result has 246 places, 368 transitions, 9557 flow [2021-06-13 09:06:01,779 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=8869, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9557, PETRI_PLACES=246, PETRI_TRANSITIONS=368} [2021-06-13 09:06:01,779 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 222 predicate places. [2021-06-13 09:06:01,780 INFO L482 AbstractCegarLoop]: Abstraction has has 246 places, 368 transitions, 9557 flow [2021-06-13 09:06:01,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:01,780 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:01,780 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:01,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2021-06-13 09:06:01,993 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:01,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:01,993 INFO L82 PathProgramCache]: Analyzing trace with hash 915485772, now seen corresponding path program 5 times [2021-06-13 09:06:01,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:01,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566037848] [2021-06-13 09:06:01,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:02,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:02,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:02,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:02,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:02,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:02,029 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:02,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566037848] [2021-06-13 09:06:02,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566037848] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:02,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195240746] [2021-06-13 09:06:02,029 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:02,056 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:06:02,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:02,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:02,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:02,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:02,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:02,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:02,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:02,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:02,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:02,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:02,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:02,077 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:06:02,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:02,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:02,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:02,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:02,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:02,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,092 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:02,092 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:02,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:02,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:02,095 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:02,095 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:02,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:02,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:02,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:02,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:02,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:02,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:02,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:02,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:02,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:02,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:02,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:02,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,115 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:02,116 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:02,117 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-06-13 09:06:02,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:02,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:02,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:02,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:02,135 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 09:06:02,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:02,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:02,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195240746] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:02,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:02,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2021-06-13 09:06:02,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131801331] [2021-06-13 09:06:02,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:06:02,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:02,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:06:02,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:06:02,138 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:02,138 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 368 transitions, 9557 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:02,138 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:02,138 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:02,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:02,820 INFO L129 PetriNetUnfolder]: 1290/2514 cut-off events. [2021-06-13 09:06:02,821 INFO L130 PetriNetUnfolder]: For 78234/78305 co-relation queries the response was YES. [2021-06-13 09:06:02,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24642 conditions, 2514 events. 1290/2514 cut-off events. For 78234/78305 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 17529 event pairs, 128 based on Foata normal form. 5/2519 useless extension candidates. Maximal degree in co-relation 24523. Up to 1638 conditions per place. [2021-06-13 09:06:02,855 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 350 selfloop transitions, 82 changer transitions 34/473 dead transitions. [2021-06-13 09:06:02,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 473 transitions, 12505 flow [2021-06-13 09:06:02,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 09:06:02,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 09:06:02,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 194 transitions. [2021-06-13 09:06:02,856 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7348484848484849 [2021-06-13 09:06:02,856 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 194 transitions. [2021-06-13 09:06:02,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 194 transitions. [2021-06-13 09:06:02,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:02,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 194 transitions. [2021-06-13 09:06:02,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 16.166666666666668) internal successors, (194), 12 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:02,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 22.0) internal successors, (286), 13 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:02,857 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 22.0) internal successors, (286), 13 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:02,857 INFO L185 Difference]: Start difference. First operand has 246 places, 368 transitions, 9557 flow. Second operand 12 states and 194 transitions. [2021-06-13 09:06:02,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 473 transitions, 12505 flow [2021-06-13 09:06:03,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 473 transitions, 12376 flow, removed 63 selfloop flow, removed 5 redundant places. [2021-06-13 09:06:03,249 INFO L241 Difference]: Finished difference. Result has 256 places, 393 transitions, 10308 flow [2021-06-13 09:06:03,250 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=9472, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10308, PETRI_PLACES=256, PETRI_TRANSITIONS=393} [2021-06-13 09:06:03,250 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 232 predicate places. [2021-06-13 09:06:03,250 INFO L482 AbstractCegarLoop]: Abstraction has has 256 places, 393 transitions, 10308 flow [2021-06-13 09:06:03,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:03,250 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:03,250 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:03,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2021-06-13 09:06:03,453 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:03,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:03,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1324174484, now seen corresponding path program 13 times [2021-06-13 09:06:03,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:03,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377340648] [2021-06-13 09:06:03,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:03,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:03,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:03,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:03,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:03,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:03,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:03,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:03,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377340648] [2021-06-13 09:06:03,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377340648] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:03,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264733173] [2021-06-13 09:06:03,570 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:03,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:03,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:03,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:03,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:03,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:03,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:03,612 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-06-13 09:06:03,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:03,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:03,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:03,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:03,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,620 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:03,622 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:03,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:03,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:03,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:03,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:03,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:03,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:03,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:03,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:03,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:03,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:03,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:03,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:03,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:03,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 09:06:03,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,660 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:03,661 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:03,662 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-06-13 09:06:03,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:03,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:03,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:03,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:03,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:03,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:03,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:03,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:03,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:03,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:03,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:03,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:03,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:03,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:03,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:03,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:03,706 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:03,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:03,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:03,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:03,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264733173] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:03,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:03,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:06:03,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460049175] [2021-06-13 09:06:03,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:06:03,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:03,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:06:03,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:06:03,708 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:03,709 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 393 transitions, 10308 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:03,709 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:03,709 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:03,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:04,394 INFO L129 PetriNetUnfolder]: 1273/2512 cut-off events. [2021-06-13 09:06:04,394 INFO L130 PetriNetUnfolder]: For 82289/82345 co-relation queries the response was YES. [2021-06-13 09:06:04,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25306 conditions, 2512 events. 1273/2512 cut-off events. For 82289/82345 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 17848 event pairs, 180 based on Foata normal form. 9/2521 useless extension candidates. Maximal degree in co-relation 24960. Up to 884 conditions per place. [2021-06-13 09:06:04,431 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 338 selfloop transitions, 130 changer transitions 11/486 dead transitions. [2021-06-13 09:06:04,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 486 transitions, 13237 flow [2021-06-13 09:06:04,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:04,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:04,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 119 transitions. [2021-06-13 09:06:04,432 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-13 09:06:04,432 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 119 transitions. [2021-06-13 09:06:04,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 119 transitions. [2021-06-13 09:06:04,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:04,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 119 transitions. [2021-06-13 09:06:04,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:04,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:04,433 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:04,433 INFO L185 Difference]: Start difference. First operand has 256 places, 393 transitions, 10308 flow. Second operand 7 states and 119 transitions. [2021-06-13 09:06:04,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 486 transitions, 13237 flow [2021-06-13 09:06:04,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 486 transitions, 12977 flow, removed 95 selfloop flow, removed 9 redundant places. [2021-06-13 09:06:04,782 INFO L241 Difference]: Finished difference. Result has 255 places, 409 transitions, 11007 flow [2021-06-13 09:06:04,782 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=10125, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=11007, PETRI_PLACES=255, PETRI_TRANSITIONS=409} [2021-06-13 09:06:04,782 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 231 predicate places. [2021-06-13 09:06:04,782 INFO L482 AbstractCegarLoop]: Abstraction has has 255 places, 409 transitions, 11007 flow [2021-06-13 09:06:04,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:04,782 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:04,782 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:04,983 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:04,983 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:04,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:04,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1388297518, now seen corresponding path program 14 times [2021-06-13 09:06:04,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:04,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080477280] [2021-06-13 09:06:04,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:04,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:04,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:04,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:04,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:05,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:05,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:05,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:05,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:05,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:05,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080477280] [2021-06-13 09:06:05,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080477280] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:05,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598153934] [2021-06-13 09:06:05,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:05,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:06:05,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:05,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:05,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:05,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:05,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:05,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:05,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:05,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:05,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:05,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:05,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:05,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:05,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:05,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:05,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:05,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:05,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:05,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:05,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:05,115 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-06-13 09:06:05,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:05,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:05,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:05,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:05,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:05,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,120 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:05,120 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:05,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:05,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:05,131 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:05,132 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:05,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:05,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:05,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:05,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:05,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:05,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:05,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:05,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:05,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:05,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:05,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:05,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:05,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,163 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:05,164 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:05,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:05,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:05,166 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:05,167 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:05,168 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:06:05,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:05,191 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:05,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:05,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:05,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:05,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598153934] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:05,194 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:05,194 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:06:05,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247623823] [2021-06-13 09:06:05,194 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:06:05,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:05,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:06:05,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:06:05,195 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:05,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 409 transitions, 11007 flow. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:05,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:05,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:05,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:05,495 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 26 [2021-06-13 09:06:06,112 INFO L129 PetriNetUnfolder]: 1289/2558 cut-off events. [2021-06-13 09:06:06,112 INFO L130 PetriNetUnfolder]: For 83197/83223 co-relation queries the response was YES. [2021-06-13 09:06:06,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25920 conditions, 2558 events. 1289/2558 cut-off events. For 83197/83223 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 18207 event pairs, 233 based on Foata normal form. 6/2564 useless extension candidates. Maximal degree in co-relation 25466. Up to 890 conditions per place. [2021-06-13 09:06:06,143 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 322 selfloop transitions, 127 changer transitions 5/461 dead transitions. [2021-06-13 09:06:06,143 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 461 transitions, 12839 flow [2021-06-13 09:06:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 09:06:06,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 09:06:06,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 155 transitions. [2021-06-13 09:06:06,144 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7828282828282829 [2021-06-13 09:06:06,144 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 155 transitions. [2021-06-13 09:06:06,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 155 transitions. [2021-06-13 09:06:06,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:06,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 155 transitions. [2021-06-13 09:06:06,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.22222222222222) internal successors, (155), 9 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:06,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:06,145 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:06,145 INFO L185 Difference]: Start difference. First operand has 255 places, 409 transitions, 11007 flow. Second operand 9 states and 155 transitions. [2021-06-13 09:06:06,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 461 transitions, 12839 flow [2021-06-13 09:06:06,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 461 transitions, 12668 flow, removed 37 selfloop flow, removed 1 redundant places. [2021-06-13 09:06:06,535 INFO L241 Difference]: Finished difference. Result has 266 places, 429 transitions, 11566 flow [2021-06-13 09:06:06,535 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=10863, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11566, PETRI_PLACES=266, PETRI_TRANSITIONS=429} [2021-06-13 09:06:06,535 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 242 predicate places. [2021-06-13 09:06:06,535 INFO L482 AbstractCegarLoop]: Abstraction has has 266 places, 429 transitions, 11566 flow [2021-06-13 09:06:06,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:06,536 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:06,536 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:06,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:06,738 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:06,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:06,738 INFO L82 PathProgramCache]: Analyzing trace with hash 790284952, now seen corresponding path program 15 times [2021-06-13 09:06:06,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:06,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275925925] [2021-06-13 09:06:06,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:06,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:06,762 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-06-13 09:06:06,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:06:06,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:06,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:06,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:06,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:06,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:06,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275925925] [2021-06-13 09:06:06,808 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275925925] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:06,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212676784] [2021-06-13 09:06:06,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:06,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:06:06,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:06,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:06,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:06,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:06,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:06,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:06,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:06,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:06,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:06,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:06,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:06,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:06,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:06,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:06,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:06,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:06,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:06,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:06,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:06,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:06,923 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-06-13 09:06:06,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:06,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:06,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:06,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 09:06:06,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:06,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,928 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:06,929 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:06,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:06,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:06,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:06,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,933 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:06,934 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:06,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:06,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:06,939 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:06,942 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:06,943 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-06-13 09:06:06,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:06,965 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:06,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:06,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:06,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:06,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212676784] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:06,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:06,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:06:06,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903025546] [2021-06-13 09:06:06,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:06:06,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:06,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:06:06,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:06:06,968 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:06,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 429 transitions, 11566 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:06,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:06,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:06,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:08,038 INFO L129 PetriNetUnfolder]: 1314/2626 cut-off events. [2021-06-13 09:06:08,039 INFO L130 PetriNetUnfolder]: For 88523/88549 co-relation queries the response was YES. [2021-06-13 09:06:08,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26787 conditions, 2626 events. 1314/2626 cut-off events. For 88523/88549 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 18960 event pairs, 224 based on Foata normal form. 2/2628 useless extension candidates. Maximal degree in co-relation 26327. Up to 890 conditions per place. [2021-06-13 09:06:08,083 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 324 selfloop transitions, 143 changer transitions 7/481 dead transitions. [2021-06-13 09:06:08,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 481 transitions, 13546 flow [2021-06-13 09:06:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 09:06:08,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 09:06:08,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 157 transitions. [2021-06-13 09:06:08,085 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7929292929292929 [2021-06-13 09:06:08,085 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 157 transitions. [2021-06-13 09:06:08,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 157 transitions. [2021-06-13 09:06:08,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:08,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 157 transitions. [2021-06-13 09:06:08,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:08,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:08,086 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:08,086 INFO L185 Difference]: Start difference. First operand has 266 places, 429 transitions, 11566 flow. Second operand 9 states and 157 transitions. [2021-06-13 09:06:08,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 481 transitions, 13546 flow [2021-06-13 09:06:08,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 481 transitions, 13280 flow, removed 127 selfloop flow, removed 1 redundant places. [2021-06-13 09:06:08,433 INFO L241 Difference]: Finished difference. Result has 276 places, 440 transitions, 11991 flow [2021-06-13 09:06:08,434 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=11410, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11991, PETRI_PLACES=276, PETRI_TRANSITIONS=440} [2021-06-13 09:06:08,434 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 252 predicate places. [2021-06-13 09:06:08,434 INFO L482 AbstractCegarLoop]: Abstraction has has 276 places, 440 transitions, 11991 flow [2021-06-13 09:06:08,434 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:08,434 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:08,434 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:08,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:08,635 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:08,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:08,635 INFO L82 PathProgramCache]: Analyzing trace with hash 641511608, now seen corresponding path program 16 times [2021-06-13 09:06:08,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:08,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352093343] [2021-06-13 09:06:08,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:08,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:08,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:08,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:08,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:08,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352093343] [2021-06-13 09:06:08,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352093343] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:08,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830448830] [2021-06-13 09:06:08,683 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:08,709 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:06:08,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:08,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:08,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:08,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,726 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-06-13 09:06:08,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:08,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:08,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:08,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,729 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:08,733 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:08,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:08,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:08,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:08,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:08,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:08,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:08,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,750 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:08,751 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:08,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:08,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:08,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:08,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:08,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:08,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:08,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:08,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:08,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:08,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:08,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:08,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:08,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:08,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,784 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:08,784 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:08,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:08,787 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:08,787 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:08,788 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:06:08,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:08,802 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:08,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:08,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:08,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:08,804 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830448830] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:08,804 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:08,804 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:06:08,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115652966] [2021-06-13 09:06:08,804 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:06:08,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:08,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:06:08,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:06:08,804 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:08,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 440 transitions, 11991 flow. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:08,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:08,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:08,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:09,563 INFO L129 PetriNetUnfolder]: 1320/2677 cut-off events. [2021-06-13 09:06:09,563 INFO L130 PetriNetUnfolder]: For 92447/92473 co-relation queries the response was YES. [2021-06-13 09:06:09,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27369 conditions, 2677 events. 1320/2677 cut-off events. For 92447/92473 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 19732 event pairs, 173 based on Foata normal form. 1/2678 useless extension candidates. Maximal degree in co-relation 26900. Up to 888 conditions per place. [2021-06-13 09:06:09,604 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 311 selfloop transitions, 173 changer transitions 24/515 dead transitions. [2021-06-13 09:06:09,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 515 transitions, 14577 flow [2021-06-13 09:06:09,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:09,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:09,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 116 transitions. [2021-06-13 09:06:09,605 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7532467532467533 [2021-06-13 09:06:09,606 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 116 transitions. [2021-06-13 09:06:09,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 116 transitions. [2021-06-13 09:06:09,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:09,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 116 transitions. [2021-06-13 09:06:09,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:09,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:09,606 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:09,606 INFO L185 Difference]: Start difference. First operand has 276 places, 440 transitions, 11991 flow. Second operand 7 states and 116 transitions. [2021-06-13 09:06:09,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 515 transitions, 14577 flow [2021-06-13 09:06:09,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 515 transitions, 14084 flow, removed 15 selfloop flow, removed 5 redundant places. [2021-06-13 09:06:09,994 INFO L241 Difference]: Finished difference. Result has 281 places, 452 transitions, 12359 flow [2021-06-13 09:06:09,994 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=11526, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=12359, PETRI_PLACES=281, PETRI_TRANSITIONS=452} [2021-06-13 09:06:09,994 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 257 predicate places. [2021-06-13 09:06:09,994 INFO L482 AbstractCegarLoop]: Abstraction has has 281 places, 452 transitions, 12359 flow [2021-06-13 09:06:09,994 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:09,994 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:09,994 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:10,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-06-13 09:06:10,197 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:10,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:10,197 INFO L82 PathProgramCache]: Analyzing trace with hash -939111350, now seen corresponding path program 17 times [2021-06-13 09:06:10,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:10,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203806472] [2021-06-13 09:06:10,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:10,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:10,226 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-06-13 09:06:10,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:06:10,245 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.6 percent of original size [2021-06-13 09:06:10,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-13 09:06:10,263 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.0 percent of original size [2021-06-13 09:06:10,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:10,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:10,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:10,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:10,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203806472] [2021-06-13 09:06:10,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203806472] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:10,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709867954] [2021-06-13 09:06:10,294 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:10,334 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:06:10,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:10,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:10,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:10,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:10,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:10,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:10,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:10,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:10,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:10,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:10,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:10,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:10,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:10,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:10,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:10,391 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-06-13 09:06:10,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:10,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:10,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:10,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:10,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:10,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,395 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:10,396 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:10,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:10,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:10,409 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:10,410 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:10,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:10,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:10,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:10,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:10,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:10,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:10,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:10,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:10,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:10,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:10,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:10,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:10,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,435 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:10,436 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:10,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:10,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:10,439 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:10,439 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:10,440 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:06:10,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:10,463 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:10,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:10,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:10,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:10,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709867954] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:10,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:10,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:06:10,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344091295] [2021-06-13 09:06:10,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:06:10,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:10,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:06:10,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:06:10,466 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:10,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 452 transitions, 12359 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:10,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:10,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:10,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:11,360 INFO L129 PetriNetUnfolder]: 1328/2721 cut-off events. [2021-06-13 09:06:11,360 INFO L130 PetriNetUnfolder]: For 94415/94441 co-relation queries the response was YES. [2021-06-13 09:06:11,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27607 conditions, 2721 events. 1328/2721 cut-off events. For 94415/94441 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 20234 event pairs, 231 based on Foata normal form. 1/2722 useless extension candidates. Maximal degree in co-relation 27136. Up to 892 conditions per place. [2021-06-13 09:06:11,394 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 333 selfloop transitions, 142 changer transitions 10/492 dead transitions. [2021-06-13 09:06:11,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 492 transitions, 14096 flow [2021-06-13 09:06:11,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:11,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:06:11,397 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:06:11,397 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:06:11,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:06:11,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:11,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:06:11,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:11,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:11,398 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:11,398 INFO L185 Difference]: Start difference. First operand has 281 places, 452 transitions, 12359 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:06:11,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 492 transitions, 14096 flow [2021-06-13 09:06:11,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 492 transitions, 13854 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-06-13 09:06:11,776 INFO L241 Difference]: Finished difference. Result has 288 places, 460 transitions, 12671 flow [2021-06-13 09:06:11,777 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=12120, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=12671, PETRI_PLACES=288, PETRI_TRANSITIONS=460} [2021-06-13 09:06:11,777 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 264 predicate places. [2021-06-13 09:06:11,777 INFO L482 AbstractCegarLoop]: Abstraction has has 288 places, 460 transitions, 12671 flow [2021-06-13 09:06:11,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:11,777 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:11,777 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:11,988 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2021-06-13 09:06:11,989 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:11,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:11,989 INFO L82 PathProgramCache]: Analyzing trace with hash -606550556, now seen corresponding path program 18 times [2021-06-13 09:06:11,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:11,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825549048] [2021-06-13 09:06:11,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:12,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:12,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:12,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:12,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:12,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:12,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:12,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825549048] [2021-06-13 09:06:12,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825549048] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:12,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216324744] [2021-06-13 09:06:12,042 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:12,068 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:06:12,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:12,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:12,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:12,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:12,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:12,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:12,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:12,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:12,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:12,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:12,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:12,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:12,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:12,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:12,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:12,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:12,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:12,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:12,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:12,098 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size [2021-06-13 09:06:12,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:12,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:12,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:12,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:12,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:12,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,101 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:12,102 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:12,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:12,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:12,105 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:12,105 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:12,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:12,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:12,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:12,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:12,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:12,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:12,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:12,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:12,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:12,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:12,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:12,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:12,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:12,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:12,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:12,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:12,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,143 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:12,144 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:12,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:12,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:12,145 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:12,146 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:12,146 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:06:12,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:12,160 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:12,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:12,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:12,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:12,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216324744] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:12,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:12,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:06:12,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751171806] [2021-06-13 09:06:12,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:06:12,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:12,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:06:12,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:06:12,163 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:12,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 460 transitions, 12671 flow. Second operand has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:12,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:12,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:12,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:13,271 INFO L129 PetriNetUnfolder]: 1328/2707 cut-off events. [2021-06-13 09:06:13,271 INFO L130 PetriNetUnfolder]: For 97542/97591 co-relation queries the response was YES. [2021-06-13 09:06:13,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28116 conditions, 2707 events. 1328/2707 cut-off events. For 97542/97591 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 20057 event pairs, 194 based on Foata normal form. 8/2715 useless extension candidates. Maximal degree in co-relation 27642. Up to 894 conditions per place. [2021-06-13 09:06:13,306 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 268 selfloop transitions, 226 changer transitions 18/519 dead transitions. [2021-06-13 09:06:13,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 519 transitions, 15050 flow [2021-06-13 09:06:13,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 09:06:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 09:06:13,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 202 transitions. [2021-06-13 09:06:13,308 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7062937062937062 [2021-06-13 09:06:13,308 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 202 transitions. [2021-06-13 09:06:13,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 202 transitions. [2021-06-13 09:06:13,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:13,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 202 transitions. [2021-06-13 09:06:13,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 13 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:13,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 22.0) internal successors, (308), 14 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:13,309 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 22.0) internal successors, (308), 14 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:13,309 INFO L185 Difference]: Start difference. First operand has 288 places, 460 transitions, 12671 flow. Second operand 13 states and 202 transitions. [2021-06-13 09:06:13,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 519 transitions, 15050 flow [2021-06-13 09:06:13,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 519 transitions, 14869 flow, removed 38 selfloop flow, removed 1 redundant places. [2021-06-13 09:06:13,771 INFO L241 Difference]: Finished difference. Result has 307 places, 477 transitions, 13588 flow [2021-06-13 09:06:13,771 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=12521, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13588, PETRI_PLACES=307, PETRI_TRANSITIONS=477} [2021-06-13 09:06:13,771 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 283 predicate places. [2021-06-13 09:06:13,771 INFO L482 AbstractCegarLoop]: Abstraction has has 307 places, 477 transitions, 13588 flow [2021-06-13 09:06:13,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:13,771 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:13,772 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:13,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-06-13 09:06:13,985 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:13,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:13,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1873311136, now seen corresponding path program 19 times [2021-06-13 09:06:13,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:13,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944538547] [2021-06-13 09:06:13,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:14,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:14,010 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-06-13 09:06:14,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:06:14,023 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-06-13 09:06:14,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:14,034 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.0 percent of original size [2021-06-13 09:06:14,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:14,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:14,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:14,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:14,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944538547] [2021-06-13 09:06:14,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944538547] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:14,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20992968] [2021-06-13 09:06:14,056 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:14,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:14,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:14,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:14,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:14,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:14,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:14,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:14,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:14,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:14,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:14,112 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:06:14,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:14,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:14,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:14,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:14,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,114 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:14,115 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:14,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:14,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:14,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:14,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:14,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:14,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:14,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:14,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:14,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:14,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:14,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,140 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:14,141 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:14,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:14,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:14,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:14,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:14,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:14,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:14,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:14,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:14,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:14,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:14,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:14,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:14,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,163 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:14,163 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:14,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:14,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:14,166 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:14,166 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:14,167 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:06:14,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:14,193 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:14,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:14,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:14,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:14,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20992968] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:14,195 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:14,195 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:06:14,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729620394] [2021-06-13 09:06:14,196 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:06:14,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:14,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:06:14,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:06:14,196 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:14,197 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 477 transitions, 13588 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:14,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:14,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:14,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:15,066 INFO L129 PetriNetUnfolder]: 1306/2636 cut-off events. [2021-06-13 09:06:15,066 INFO L130 PetriNetUnfolder]: For 108207/108233 co-relation queries the response was YES. [2021-06-13 09:06:15,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28702 conditions, 2636 events. 1306/2636 cut-off events. For 108207/108233 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 19228 event pairs, 225 based on Foata normal form. 1/2637 useless extension candidates. Maximal degree in co-relation 28206. Up to 892 conditions per place. [2021-06-13 09:06:15,107 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 378 selfloop transitions, 136 changer transitions 9/530 dead transitions. [2021-06-13 09:06:15,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 530 transitions, 15818 flow [2021-06-13 09:06:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:15,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:15,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 119 transitions. [2021-06-13 09:06:15,108 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-13 09:06:15,108 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 119 transitions. [2021-06-13 09:06:15,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 119 transitions. [2021-06-13 09:06:15,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:15,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 119 transitions. [2021-06-13 09:06:15,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:15,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:15,109 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:15,109 INFO L185 Difference]: Start difference. First operand has 307 places, 477 transitions, 13588 flow. Second operand 7 states and 119 transitions. [2021-06-13 09:06:15,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 530 transitions, 15818 flow [2021-06-13 09:06:15,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 530 transitions, 15351 flow, removed 90 selfloop flow, removed 6 redundant places. [2021-06-13 09:06:15,650 INFO L241 Difference]: Finished difference. Result has 309 places, 484 transitions, 13762 flow [2021-06-13 09:06:15,650 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=13196, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=13762, PETRI_PLACES=309, PETRI_TRANSITIONS=484} [2021-06-13 09:06:15,650 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 285 predicate places. [2021-06-13 09:06:15,651 INFO L482 AbstractCegarLoop]: Abstraction has has 309 places, 484 transitions, 13762 flow [2021-06-13 09:06:15,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:15,651 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:15,651 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:15,874 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:15,874 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:15,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:15,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1864569200, now seen corresponding path program 5 times [2021-06-13 09:06:15,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:15,875 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069096141] [2021-06-13 09:06:15,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:15,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:15,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:15,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:15,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:15,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:15,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:15,928 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:15,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069096141] [2021-06-13 09:06:15,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069096141] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:15,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310866509] [2021-06-13 09:06:15,928 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:15,955 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:06:15,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:15,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-13 09:06:15,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:15,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:15,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:15,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:15,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:15,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:15,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:15,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:15,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:15,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:15,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:15,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:15,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:15,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:15,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:15,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:15,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:15,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:15,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:15,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:15,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:15,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:15,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:16,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:16,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:16,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:16,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:16,008 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:06:16,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:16,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:16,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:16,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:16,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:16,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,011 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:16,012 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:16,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:16,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:16,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:16,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,015 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:16,015 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:16,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:16,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:16,017 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:16,017 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:16,017 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-06-13 09:06:16,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:16,030 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-06-13 09:06:16,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:16,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:16,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:16,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:16,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:16,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310866509] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:16,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:16,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:06:16,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648387744] [2021-06-13 09:06:16,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:06:16,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:16,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:06:16,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:06:16,032 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:16,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 484 transitions, 13762 flow. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:16,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:16,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:16,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:16,751 INFO L129 PetriNetUnfolder]: 1329/2671 cut-off events. [2021-06-13 09:06:16,751 INFO L130 PetriNetUnfolder]: For 107300/107326 co-relation queries the response was YES. [2021-06-13 09:06:16,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28819 conditions, 2671 events. 1329/2671 cut-off events. For 107300/107326 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 19456 event pairs, 183 based on Foata normal form. 1/2672 useless extension candidates. Maximal degree in co-relation 28323. Up to 1807 conditions per place. [2021-06-13 09:06:16,846 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 412 selfloop transitions, 114 changer transitions 1/534 dead transitions. [2021-06-13 09:06:16,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 534 transitions, 15759 flow [2021-06-13 09:06:16,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:16,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 118 transitions. [2021-06-13 09:06:16,848 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7662337662337663 [2021-06-13 09:06:16,848 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 118 transitions. [2021-06-13 09:06:16,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 118 transitions. [2021-06-13 09:06:16,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:16,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 118 transitions. [2021-06-13 09:06:16,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:16,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:16,849 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:16,849 INFO L185 Difference]: Start difference. First operand has 309 places, 484 transitions, 13762 flow. Second operand 7 states and 118 transitions. [2021-06-13 09:06:16,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 534 transitions, 15759 flow [2021-06-13 09:06:17,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 534 transitions, 15535 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-06-13 09:06:17,246 INFO L241 Difference]: Finished difference. Result has 316 places, 502 transitions, 14223 flow [2021-06-13 09:06:17,246 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=13538, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=14223, PETRI_PLACES=316, PETRI_TRANSITIONS=502} [2021-06-13 09:06:17,246 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 292 predicate places. [2021-06-13 09:06:17,246 INFO L482 AbstractCegarLoop]: Abstraction has has 316 places, 502 transitions, 14223 flow [2021-06-13 09:06:17,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:17,246 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:17,246 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:17,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2021-06-13 09:06:17,447 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:17,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:17,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1517144992, now seen corresponding path program 6 times [2021-06-13 09:06:17,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:17,447 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528844224] [2021-06-13 09:06:17,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:17,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:06:17,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:06:17,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:17,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:17,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528844224] [2021-06-13 09:06:17,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528844224] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:17,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632837333] [2021-06-13 09:06:17,499 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:17,530 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:06:17,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:17,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:17,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:17,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:17,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:17,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:17,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:17,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:17,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:17,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:17,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:17,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:17,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:17,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:17,586 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:06:17,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:17,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:17,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:17,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:17,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:17,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,591 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:17,592 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:17,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:17,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:17,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:17,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,594 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:17,595 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:17,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:17,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:17,597 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:17,597 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:17,598 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:06:17,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:17,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:17,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:17,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:17,610 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-06-13 09:06:17,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:17,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:17,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632837333] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:17,613 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:17,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-06-13 09:06:17,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756447949] [2021-06-13 09:06:17,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:06:17,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:17,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:06:17,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:06:17,614 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:17,614 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 502 transitions, 14223 flow. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:17,614 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:17,614 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:17,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:18,499 INFO L129 PetriNetUnfolder]: 1363/2722 cut-off events. [2021-06-13 09:06:18,500 INFO L130 PetriNetUnfolder]: For 111154/111180 co-relation queries the response was YES. [2021-06-13 09:06:18,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29668 conditions, 2722 events. 1363/2722 cut-off events. For 111154/111180 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 19779 event pairs, 120 based on Foata normal form. 4/2726 useless extension candidates. Maximal degree in co-relation 29173. Up to 1149 conditions per place. [2021-06-13 09:06:18,543 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 334 selfloop transitions, 229 changer transitions 10/580 dead transitions. [2021-06-13 09:06:18,543 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 580 transitions, 17111 flow [2021-06-13 09:06:18,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 09:06:18,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 09:06:18,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 202 transitions. [2021-06-13 09:06:18,544 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7651515151515151 [2021-06-13 09:06:18,544 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 202 transitions. [2021-06-13 09:06:18,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 202 transitions. [2021-06-13 09:06:18,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:18,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 202 transitions. [2021-06-13 09:06:18,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 16.833333333333332) internal successors, (202), 12 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:18,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 22.0) internal successors, (286), 13 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:18,545 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 22.0) internal successors, (286), 13 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:18,545 INFO L185 Difference]: Start difference. First operand has 316 places, 502 transitions, 14223 flow. Second operand 12 states and 202 transitions. [2021-06-13 09:06:18,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 580 transitions, 17111 flow [2021-06-13 09:06:19,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 580 transitions, 16946 flow, removed 25 selfloop flow, removed 2 redundant places. [2021-06-13 09:06:19,072 INFO L241 Difference]: Finished difference. Result has 329 places, 529 transitions, 15320 flow [2021-06-13 09:06:19,073 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=14064, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15320, PETRI_PLACES=329, PETRI_TRANSITIONS=529} [2021-06-13 09:06:19,073 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 305 predicate places. [2021-06-13 09:06:19,073 INFO L482 AbstractCegarLoop]: Abstraction has has 329 places, 529 transitions, 15320 flow [2021-06-13 09:06:19,073 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:19,073 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:19,073 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:19,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:19,289 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:19,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:19,289 INFO L82 PathProgramCache]: Analyzing trace with hash -634861928, now seen corresponding path program 20 times [2021-06-13 09:06:19,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:19,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155874029] [2021-06-13 09:06:19,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:19,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:19,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:19,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-13 09:06:19,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:06:19,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:19,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:19,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:19,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155874029] [2021-06-13 09:06:19,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155874029] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:19,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196461406] [2021-06-13 09:06:19,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:19,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:06:19,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:19,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:19,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:19,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:19,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:19,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:19,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:19,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:19,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:19,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:19,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:19,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:19,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:19,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:19,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:19,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:19,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:19,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:06:19,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:19,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:19,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:06:19,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:19,479 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-06-13 09:06:19,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:19,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:19,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:19,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 09:06:19,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:19,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,484 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:19,485 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:19,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:19,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:19,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:19,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,487 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:19,488 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:19,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:19,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:19,493 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:19,494 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:19,494 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-06-13 09:06:19,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:19,510 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:19,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:19,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:19,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:19,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196461406] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:19,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:19,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:06:19,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108826626] [2021-06-13 09:06:19,513 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:06:19,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:19,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:06:19,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:06:19,514 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:19,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 529 transitions, 15320 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:19,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:19,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:19,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:20,289 INFO L129 PetriNetUnfolder]: 1343/2652 cut-off events. [2021-06-13 09:06:20,290 INFO L130 PetriNetUnfolder]: For 113984/114010 co-relation queries the response was YES. [2021-06-13 09:06:20,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29704 conditions, 2652 events. 1343/2652 cut-off events. For 113984/114010 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 18957 event pairs, 217 based on Foata normal form. 1/2653 useless extension candidates. Maximal degree in co-relation 29558. Up to 932 conditions per place. [2021-06-13 09:06:20,325 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 316 selfloop transitions, 224 changer transitions 4/551 dead transitions. [2021-06-13 09:06:20,326 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 551 transitions, 16882 flow [2021-06-13 09:06:20,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:20,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:20,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions. [2021-06-13 09:06:20,337 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2021-06-13 09:06:20,337 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 121 transitions. [2021-06-13 09:06:20,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 121 transitions. [2021-06-13 09:06:20,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:20,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 121 transitions. [2021-06-13 09:06:20,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:20,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:20,338 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:20,338 INFO L185 Difference]: Start difference. First operand has 329 places, 529 transitions, 15320 flow. Second operand 7 states and 121 transitions. [2021-06-13 09:06:20,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 551 transitions, 16882 flow [2021-06-13 09:06:20,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 551 transitions, 16489 flow, removed 48 selfloop flow, removed 6 redundant places. [2021-06-13 09:06:20,825 INFO L241 Difference]: Finished difference. Result has 324 places, 531 transitions, 15446 flow [2021-06-13 09:06:20,826 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=14944, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=221, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=15446, PETRI_PLACES=324, PETRI_TRANSITIONS=531} [2021-06-13 09:06:20,826 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 300 predicate places. [2021-06-13 09:06:20,826 INFO L482 AbstractCegarLoop]: Abstraction has has 324 places, 531 transitions, 15446 flow [2021-06-13 09:06:20,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:20,826 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:20,826 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:21,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:21,027 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:21,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:21,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1237853976, now seen corresponding path program 6 times [2021-06-13 09:06:21,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:21,027 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463765428] [2021-06-13 09:06:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:21,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:21,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:21,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:21,064 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:21,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463765428] [2021-06-13 09:06:21,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463765428] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:21,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779466354] [2021-06-13 09:06:21,064 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:21,103 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:06:21,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:21,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:21,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:21,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:21,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:21,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:21,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:21,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:21,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:21,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:21,143 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-13 09:06:21,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:21,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:21,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:21,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:21,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:21,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,147 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:21,147 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:21,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:21,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:21,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:21,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,150 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:21,150 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:21,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:21,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:21,152 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:21,152 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:21,153 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-06-13 09:06:21,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:21,163 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-06-13 09:06:21,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:21,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:21,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:21,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779466354] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:21,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:21,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2021-06-13 09:06:21,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469689464] [2021-06-13 09:06:21,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:06:21,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:21,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:06:21,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:06:21,166 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:21,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 531 transitions, 15446 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:21,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:21,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:21,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:22,010 INFO L129 PetriNetUnfolder]: 1353/2659 cut-off events. [2021-06-13 09:06:22,011 INFO L130 PetriNetUnfolder]: For 115134/115175 co-relation queries the response was YES. [2021-06-13 09:06:22,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29677 conditions, 2659 events. 1353/2659 cut-off events. For 115134/115175 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 18962 event pairs, 167 based on Foata normal form. 6/2665 useless extension candidates. Maximal degree in co-relation 29175. Up to 1844 conditions per place. [2021-06-13 09:06:22,049 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 429 selfloop transitions, 138 changer transitions 7/581 dead transitions. [2021-06-13 09:06:22,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 581 transitions, 17483 flow [2021-06-13 09:06:22,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 09:06:22,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 09:06:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 177 transitions. [2021-06-13 09:06:22,050 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.731404958677686 [2021-06-13 09:06:22,050 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 177 transitions. [2021-06-13 09:06:22,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 177 transitions. [2021-06-13 09:06:22,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:22,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 177 transitions. [2021-06-13 09:06:22,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 16.09090909090909) internal successors, (177), 11 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:22,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:22,051 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:22,051 INFO L185 Difference]: Start difference. First operand has 324 places, 531 transitions, 15446 flow. Second operand 11 states and 177 transitions. [2021-06-13 09:06:22,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 581 transitions, 17483 flow [2021-06-13 09:06:22,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 581 transitions, 17013 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-06-13 09:06:22,671 INFO L241 Difference]: Finished difference. Result has 329 places, 535 transitions, 15386 flow [2021-06-13 09:06:22,672 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=14960, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15386, PETRI_PLACES=329, PETRI_TRANSITIONS=535} [2021-06-13 09:06:22,672 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 305 predicate places. [2021-06-13 09:06:22,672 INFO L482 AbstractCegarLoop]: Abstraction has has 329 places, 535 transitions, 15386 flow [2021-06-13 09:06:22,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:22,672 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:22,672 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:22,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134 [2021-06-13 09:06:22,873 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:22,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:22,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1839619906, now seen corresponding path program 21 times [2021-06-13 09:06:22,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:22,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777713643] [2021-06-13 09:06:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:22,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:22,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:22,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:22,897 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-06-13 09:06:22,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:22,907 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.0 percent of original size [2021-06-13 09:06:22,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:22,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:22,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:22,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:22,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:22,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777713643] [2021-06-13 09:06:22,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777713643] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:22,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68990410] [2021-06-13 09:06:22,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:22,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:06:22,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:22,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:22,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:22,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:22,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:22,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:22,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:22,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:22,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:22,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:22,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:22,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:22,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:22,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:22,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:22,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:22,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:22,984 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-06-13 09:06:22,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:22,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:22,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:22,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:22,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,986 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:22,986 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:22,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:22,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:22,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:22,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:22,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:22,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:23,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:23,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:23,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:23,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:23,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:23,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:23,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,015 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:23,016 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:23,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:23,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:23,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:23,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:23,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:23,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:23,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:23,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:23,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:23,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:23,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:23,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:23,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,036 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:23,037 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:23,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:23,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:23,039 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:23,039 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:23,040 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:06:23,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:23,060 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:23,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:23,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:23,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:23,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:23,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:23,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68990410] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:23,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:23,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:06:23,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446922044] [2021-06-13 09:06:23,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:06:23,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:23,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:06:23,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:06:23,063 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:23,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 535 transitions, 15386 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:23,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:23,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:23,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:24,113 INFO L129 PetriNetUnfolder]: 1338/2609 cut-off events. [2021-06-13 09:06:24,113 INFO L130 PetriNetUnfolder]: For 111805/111831 co-relation queries the response was YES. [2021-06-13 09:06:24,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29322 conditions, 2609 events. 1338/2609 cut-off events. For 111805/111831 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 18406 event pairs, 168 based on Foata normal form. 1/2610 useless extension candidates. Maximal degree in co-relation 28824. Up to 921 conditions per place. [2021-06-13 09:06:24,157 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 388 selfloop transitions, 174 changer transitions 22/591 dead transitions. [2021-06-13 09:06:24,158 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 591 transitions, 17653 flow [2021-06-13 09:06:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 117 transitions. [2021-06-13 09:06:24,158 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7597402597402597 [2021-06-13 09:06:24,158 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 117 transitions. [2021-06-13 09:06:24,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 117 transitions. [2021-06-13 09:06:24,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:24,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 117 transitions. [2021-06-13 09:06:24,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:24,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:24,159 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:24,159 INFO L185 Difference]: Start difference. First operand has 329 places, 535 transitions, 15386 flow. Second operand 7 states and 117 transitions. [2021-06-13 09:06:24,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 591 transitions, 17653 flow [2021-06-13 09:06:24,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 591 transitions, 17165 flow, removed 42 selfloop flow, removed 10 redundant places. [2021-06-13 09:06:24,649 INFO L241 Difference]: Finished difference. Result has 322 places, 536 transitions, 15322 flow [2021-06-13 09:06:24,650 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=14940, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=15322, PETRI_PLACES=322, PETRI_TRANSITIONS=536} [2021-06-13 09:06:24,650 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 298 predicate places. [2021-06-13 09:06:24,650 INFO L482 AbstractCegarLoop]: Abstraction has has 322 places, 536 transitions, 15322 flow [2021-06-13 09:06:24,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:24,650 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:24,650 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:24,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:24,853 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:24,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:24,853 INFO L82 PathProgramCache]: Analyzing trace with hash 500134052, now seen corresponding path program 22 times [2021-06-13 09:06:24,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:24,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484680293] [2021-06-13 09:06:24,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:24,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:24,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:24,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:24,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:24,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:24,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:24,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:24,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:24,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:24,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484680293] [2021-06-13 09:06:24,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484680293] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:24,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330594943] [2021-06-13 09:06:24,901 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:24,927 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:06:24,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:24,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:24,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:24,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:24,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:24,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:24,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:24,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:24,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:24,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:24,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:24,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:24,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:24,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:24,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:24,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:24,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:24,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:24,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:24,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:24,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:24,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:24,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:24,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:24,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:24,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:24,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:24,968 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-06-13 09:06:24,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:24,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:24,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:24,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:24,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:24,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,971 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:24,972 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:24,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:24,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:24,974 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:24,974 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:24,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:24,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:24,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:24,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:24,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:24,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:24,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:24,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:24,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:24,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:24,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:24,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:24,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:24,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:24,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:24,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:24,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,999 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:24,999 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:24,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:25,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:25,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:25,001 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:25,002 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:25,002 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:06:25,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:25,019 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:25,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:25,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:25,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:25,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:25,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:25,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:25,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330594943] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:25,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:25,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:06:25,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892428410] [2021-06-13 09:06:25,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:06:25,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:25,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:06:25,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:06:25,022 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:25,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 536 transitions, 15322 flow. Second operand has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:25,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:25,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:25,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:26,067 INFO L129 PetriNetUnfolder]: 1343/2625 cut-off events. [2021-06-13 09:06:26,068 INFO L130 PetriNetUnfolder]: For 110899/110925 co-relation queries the response was YES. [2021-06-13 09:06:26,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29267 conditions, 2625 events. 1343/2625 cut-off events. For 110899/110925 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 18601 event pairs, 206 based on Foata normal form. 1/2626 useless extension candidates. Maximal degree in co-relation 28767. Up to 923 conditions per place. [2021-06-13 09:06:26,101 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 321 selfloop transitions, 228 changer transitions 9/565 dead transitions. [2021-06-13 09:06:26,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 565 transitions, 17019 flow [2021-06-13 09:06:26,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 09:06:26,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 09:06:26,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 160 transitions. [2021-06-13 09:06:26,102 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2021-06-13 09:06:26,102 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 160 transitions. [2021-06-13 09:06:26,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 160 transitions. [2021-06-13 09:06:26,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:26,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 160 transitions. [2021-06-13 09:06:26,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:26,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 22.0) internal successors, (242), 11 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:26,104 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 22.0) internal successors, (242), 11 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:26,104 INFO L185 Difference]: Start difference. First operand has 322 places, 536 transitions, 15322 flow. Second operand 10 states and 160 transitions. [2021-06-13 09:06:26,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 565 transitions, 17019 flow [2021-06-13 09:06:26,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 565 transitions, 16659 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-06-13 09:06:26,580 INFO L241 Difference]: Finished difference. Result has 332 places, 541 transitions, 15605 flow [2021-06-13 09:06:26,580 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=14964, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=536, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=222, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15605, PETRI_PLACES=332, PETRI_TRANSITIONS=541} [2021-06-13 09:06:26,580 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 308 predicate places. [2021-06-13 09:06:26,580 INFO L482 AbstractCegarLoop]: Abstraction has has 332 places, 541 transitions, 15605 flow [2021-06-13 09:06:26,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:26,580 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:26,580 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:26,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable143 [2021-06-13 09:06:26,781 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:26,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:26,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1806106420, now seen corresponding path program 23 times [2021-06-13 09:06:26,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:26,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324625637] [2021-06-13 09:06:26,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:26,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:26,802 INFO L142 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-06-13 09:06:26,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:26,810 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-06-13 09:06:26,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:26,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:06:26,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:26,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:26,842 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:26,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324625637] [2021-06-13 09:06:26,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324625637] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:26,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021715649] [2021-06-13 09:06:26,842 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:26,869 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:06:26,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:26,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:26,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:26,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:26,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:26,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:26,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:26,885 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-06-13 09:06:26,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:26,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:26,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:26,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:26,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,888 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:26,888 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:26,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:26,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:26,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:26,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:26,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:26,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:26,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:26,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:26,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:26,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:26,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:26,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:26,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:26,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 09:06:26,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,919 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:26,919 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:26,920 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-06-13 09:06:26,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:26,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:26,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:26,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:26,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:26,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:26,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:26,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:26,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:26,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:26,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:26,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:26,952 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:26,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:26,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:26,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:26,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021715649] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:26,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:26,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:06:26,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850207031] [2021-06-13 09:06:26,954 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:06:26,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:26,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:06:26,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:06:26,955 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:26,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 541 transitions, 15605 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:26,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:26,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:26,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:28,210 INFO L129 PetriNetUnfolder]: 1358/2682 cut-off events. [2021-06-13 09:06:28,210 INFO L130 PetriNetUnfolder]: For 125625/125651 co-relation queries the response was YES. [2021-06-13 09:06:28,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30684 conditions, 2682 events. 1358/2682 cut-off events. For 125625/125651 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 19285 event pairs, 137 based on Foata normal form. 11/2693 useless extension candidates. Maximal degree in co-relation 30193. Up to 1027 conditions per place. [2021-06-13 09:06:28,253 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 395 selfloop transitions, 242 changer transitions 17/661 dead transitions. [2021-06-13 09:06:28,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 661 transitions, 19682 flow [2021-06-13 09:06:28,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 09:06:28,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-13 09:06:28,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 259 transitions. [2021-06-13 09:06:28,254 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7357954545454546 [2021-06-13 09:06:28,254 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 259 transitions. [2021-06-13 09:06:28,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 259 transitions. [2021-06-13 09:06:28,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:28,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 259 transitions. [2021-06-13 09:06:28,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 16.1875) internal successors, (259), 16 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:28,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 22.0) internal successors, (374), 17 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:28,256 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 22.0) internal successors, (374), 17 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:28,256 INFO L185 Difference]: Start difference. First operand has 332 places, 541 transitions, 15605 flow. Second operand 16 states and 259 transitions. [2021-06-13 09:06:28,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 661 transitions, 19682 flow [2021-06-13 09:06:28,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 661 transitions, 19073 flow, removed 74 selfloop flow, removed 7 redundant places. [2021-06-13 09:06:28,799 INFO L241 Difference]: Finished difference. Result has 345 places, 575 transitions, 16585 flow [2021-06-13 09:06:28,800 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=15082, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=16585, PETRI_PLACES=345, PETRI_TRANSITIONS=575} [2021-06-13 09:06:28,800 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 321 predicate places. [2021-06-13 09:06:28,800 INFO L482 AbstractCegarLoop]: Abstraction has has 345 places, 575 transitions, 16585 flow [2021-06-13 09:06:28,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:28,800 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:28,800 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:29,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:29,001 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:29,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:29,001 INFO L82 PathProgramCache]: Analyzing trace with hash 524208692, now seen corresponding path program 24 times [2021-06-13 09:06:29,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:29,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591406090] [2021-06-13 09:06:29,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:29,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:29,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:29,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:29,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:29,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:29,063 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:29,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591406090] [2021-06-13 09:06:29,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591406090] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:29,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435442229] [2021-06-13 09:06:29,063 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:29,093 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:06:29,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:29,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:29,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:29,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:29,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:29,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:29,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:29,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:29,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:29,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:29,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:29,117 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size [2021-06-13 09:06:29,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:29,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:29,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:29,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:29,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:29,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,121 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:29,121 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:29,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:29,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:29,124 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:29,124 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:29,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:29,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:29,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:29,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:29,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:29,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:29,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:29,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:29,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:29,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:29,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:29,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:29,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:29,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:29,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:29,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:29,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:29,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:29,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:29,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:29,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,152 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:29,153 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:29,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:29,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:29,155 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:29,156 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:29,157 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:06:29,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:29,173 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:29,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:29,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:29,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:29,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435442229] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:29,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:29,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:06:29,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665889] [2021-06-13 09:06:29,176 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:06:29,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:29,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:06:29,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:06:29,176 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:29,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 575 transitions, 16585 flow. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:29,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:29,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:29,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:29,929 INFO L129 PetriNetUnfolder]: 1344/2644 cut-off events. [2021-06-13 09:06:29,929 INFO L130 PetriNetUnfolder]: For 124698/124739 co-relation queries the response was YES. [2021-06-13 09:06:29,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30751 conditions, 2644 events. 1344/2644 cut-off events. For 124698/124739 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 18855 event pairs, 168 based on Foata normal form. 2/2646 useless extension candidates. Maximal degree in co-relation 30250. Up to 1027 conditions per place. [2021-06-13 09:06:29,969 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 374 selfloop transitions, 228 changer transitions 10/619 dead transitions. [2021-06-13 09:06:29,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 619 transitions, 18927 flow [2021-06-13 09:06:29,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:29,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:29,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 117 transitions. [2021-06-13 09:06:29,970 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7597402597402597 [2021-06-13 09:06:29,970 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 117 transitions. [2021-06-13 09:06:29,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 117 transitions. [2021-06-13 09:06:29,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:29,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 117 transitions. [2021-06-13 09:06:29,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:29,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:29,971 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:29,971 INFO L185 Difference]: Start difference. First operand has 345 places, 575 transitions, 16585 flow. Second operand 7 states and 117 transitions. [2021-06-13 09:06:29,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 619 transitions, 18927 flow [2021-06-13 09:06:30,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 619 transitions, 18206 flow, removed 249 selfloop flow, removed 5 redundant places. [2021-06-13 09:06:30,507 INFO L241 Difference]: Finished difference. Result has 346 places, 584 transitions, 16760 flow [2021-06-13 09:06:30,508 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16091, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=16760, PETRI_PLACES=346, PETRI_TRANSITIONS=584} [2021-06-13 09:06:30,508 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 322 predicate places. [2021-06-13 09:06:30,508 INFO L482 AbstractCegarLoop]: Abstraction has has 346 places, 584 transitions, 16760 flow [2021-06-13 09:06:30,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:30,508 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:30,508 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:30,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151,37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:30,708 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:30,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:30,709 INFO L82 PathProgramCache]: Analyzing trace with hash -2084206002, now seen corresponding path program 25 times [2021-06-13 09:06:30,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:30,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672680622] [2021-06-13 09:06:30,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:30,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:30,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:30,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:30,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:30,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:30,757 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:30,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672680622] [2021-06-13 09:06:30,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672680622] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:30,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759379059] [2021-06-13 09:06:30,757 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:30,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:30,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:30,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:30,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:30,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:30,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:30,804 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-06-13 09:06:30,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:30,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:30,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:30,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:30,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,807 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:30,807 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:30,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:30,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:30,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:30,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:30,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:30,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:30,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,822 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:30,823 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:30,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:30,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:30,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:30,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:30,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:30,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:30,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:30,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:30,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:30,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:30,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:30,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:30,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:30,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:30,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:30,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:30,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:30,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:30,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:30,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:30,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,870 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:30,871 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:30,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:30,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:30,873 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:30,873 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:30,874 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:06:30,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:30,890 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:30,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:30,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:30,892 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759379059] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:30,892 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:30,892 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:06:30,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953793448] [2021-06-13 09:06:30,892 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:06:30,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:30,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:06:30,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:06:30,893 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:30,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 584 transitions, 16760 flow. Second operand has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:30,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:30,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:30,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:32,260 INFO L129 PetriNetUnfolder]: 1359/2687 cut-off events. [2021-06-13 09:06:32,260 INFO L130 PetriNetUnfolder]: For 108876/108917 co-relation queries the response was YES. [2021-06-13 09:06:32,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29864 conditions, 2687 events. 1359/2687 cut-off events. For 108876/108917 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 19342 event pairs, 127 based on Foata normal form. 6/2693 useless extension candidates. Maximal degree in co-relation 29396. Up to 1029 conditions per place. [2021-06-13 09:06:32,306 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 372 selfloop transitions, 283 changer transitions 17/679 dead transitions. [2021-06-13 09:06:32,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 679 transitions, 20253 flow [2021-06-13 09:06:32,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 09:06:32,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-13 09:06:32,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 253 transitions. [2021-06-13 09:06:32,307 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.71875 [2021-06-13 09:06:32,307 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 253 transitions. [2021-06-13 09:06:32,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 253 transitions. [2021-06-13 09:06:32,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:32,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 253 transitions. [2021-06-13 09:06:32,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 15.8125) internal successors, (253), 16 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:32,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 22.0) internal successors, (374), 17 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:32,309 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 22.0) internal successors, (374), 17 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:32,309 INFO L185 Difference]: Start difference. First operand has 346 places, 584 transitions, 16760 flow. Second operand 16 states and 253 transitions. [2021-06-13 09:06:32,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 679 transitions, 20253 flow [2021-06-13 09:06:32,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 679 transitions, 19687 flow, removed 29 selfloop flow, removed 6 redundant places. [2021-06-13 09:06:32,805 INFO L241 Difference]: Finished difference. Result has 361 places, 612 transitions, 17545 flow [2021-06-13 09:06:32,805 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16250, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=17545, PETRI_PLACES=361, PETRI_TRANSITIONS=612} [2021-06-13 09:06:32,805 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 337 predicate places. [2021-06-13 09:06:32,806 INFO L482 AbstractCegarLoop]: Abstraction has has 361 places, 612 transitions, 17545 flow [2021-06-13 09:06:32,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:32,806 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:32,806 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:33,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable156 [2021-06-13 09:06:33,008 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:33,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:33,008 INFO L82 PathProgramCache]: Analyzing trace with hash 243511230, now seen corresponding path program 26 times [2021-06-13 09:06:33,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:33,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335155879] [2021-06-13 09:06:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:33,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:33,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:33,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:33,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:33,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:33,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:33,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335155879] [2021-06-13 09:06:33,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335155879] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:33,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456396073] [2021-06-13 09:06:33,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:33,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:06:33,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:33,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:33,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:33,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:33,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:33,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:33,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:33,109 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-06-13 09:06:33,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:33,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:33,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:33,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:33,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,112 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:33,112 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:33,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:33,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:33,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:33,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:33,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:33,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:33,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:33,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:33,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:33,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:33,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,142 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:33,142 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:33,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:33,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:33,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:33,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:33,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:33,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:33,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:33,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:33,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:33,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:33,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:33,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:33,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,177 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:33,178 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:33,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:33,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:33,180 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:33,180 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:33,181 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:06:33,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:33,202 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:33,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:33,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:33,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456396073] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:33,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:33,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:06:33,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726625162] [2021-06-13 09:06:33,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:06:33,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:33,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:06:33,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:06:33,205 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:33,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 612 transitions, 17545 flow. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:33,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:33,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:33,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:34,412 INFO L129 PetriNetUnfolder]: 1348/2642 cut-off events. [2021-06-13 09:06:34,413 INFO L130 PetriNetUnfolder]: For 112254/112295 co-relation queries the response was YES. [2021-06-13 09:06:34,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29760 conditions, 2642 events. 1348/2642 cut-off events. For 112254/112295 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 18864 event pairs, 132 based on Foata normal form. 7/2649 useless extension candidates. Maximal degree in co-relation 29494. Up to 1029 conditions per place. [2021-06-13 09:06:34,451 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 401 selfloop transitions, 253 changer transitions 14/675 dead transitions. [2021-06-13 09:06:34,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 675 transitions, 20126 flow [2021-06-13 09:06:34,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 09:06:34,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-13 09:06:34,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 229 transitions. [2021-06-13 09:06:34,458 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7435064935064936 [2021-06-13 09:06:34,458 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 229 transitions. [2021-06-13 09:06:34,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 229 transitions. [2021-06-13 09:06:34,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:34,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 229 transitions. [2021-06-13 09:06:34,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 16.357142857142858) internal successors, (229), 14 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:34,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 22.0) internal successors, (330), 15 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:34,459 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 22.0) internal successors, (330), 15 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:34,459 INFO L185 Difference]: Start difference. First operand has 361 places, 612 transitions, 17545 flow. Second operand 14 states and 229 transitions. [2021-06-13 09:06:34,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 675 transitions, 20126 flow [2021-06-13 09:06:35,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 675 transitions, 19648 flow, removed 62 selfloop flow, removed 5 redundant places. [2021-06-13 09:06:35,038 INFO L241 Difference]: Finished difference. Result has 370 places, 621 transitions, 17778 flow [2021-06-13 09:06:35,038 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17091, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=612, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17778, PETRI_PLACES=370, PETRI_TRANSITIONS=621} [2021-06-13 09:06:35,038 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 346 predicate places. [2021-06-13 09:06:35,038 INFO L482 AbstractCegarLoop]: Abstraction has has 370 places, 621 transitions, 17778 flow [2021-06-13 09:06:35,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:35,038 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:35,038 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:35,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:35,239 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:35,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:35,239 INFO L82 PathProgramCache]: Analyzing trace with hash -340975308, now seen corresponding path program 27 times [2021-06-13 09:06:35,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:35,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560224743] [2021-06-13 09:06:35,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:35,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:35,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:06:35,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-13 09:06:35,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 09:06:35,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:35,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:35,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:35,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560224743] [2021-06-13 09:06:35,302 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560224743] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:35,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849285122] [2021-06-13 09:06:35,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:35,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:06:35,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:35,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:35,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:35,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:35,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:35,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:35,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:35,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:35,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:35,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:35,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:35,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:35,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:35,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:06:35,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:35,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:35,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 09:06:35,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:35,385 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-06-13 09:06:35,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:35,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:35,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:35,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 09:06:35,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:35,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,389 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:35,390 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:35,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:35,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:35,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:35,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,394 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:35,395 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:35,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:35,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:35,397 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:35,397 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:35,398 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-06-13 09:06:35,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:35,418 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:35,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:35,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:35,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:35,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849285122] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:35,421 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:35,421 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:06:35,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467482358] [2021-06-13 09:06:35,421 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:06:35,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:35,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:06:35,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:06:35,422 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:35,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 621 transitions, 17778 flow. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:35,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:35,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:35,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:36,261 INFO L129 PetriNetUnfolder]: 1337/2600 cut-off events. [2021-06-13 09:06:36,262 INFO L130 PetriNetUnfolder]: For 110426/110467 co-relation queries the response was YES. [2021-06-13 09:06:36,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29478 conditions, 2600 events. 1337/2600 cut-off events. For 110426/110467 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 18379 event pairs, 175 based on Foata normal form. 2/2602 useless extension candidates. Maximal degree in co-relation 29136. Up to 1029 conditions per place. [2021-06-13 09:06:36,301 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 386 selfloop transitions, 243 changer transitions 2/638 dead transitions. [2021-06-13 09:06:36,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 638 transitions, 19393 flow [2021-06-13 09:06:36,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:36,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:36,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:06:36,302 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:06:36,302 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:06:36,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:06:36,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:36,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:06:36,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:36,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:36,303 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:36,303 INFO L185 Difference]: Start difference. First operand has 370 places, 621 transitions, 17778 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:06:36,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 638 transitions, 19393 flow [2021-06-13 09:06:36,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 638 transitions, 19099 flow, removed 36 selfloop flow, removed 4 redundant places. [2021-06-13 09:06:36,844 INFO L241 Difference]: Finished difference. Result has 372 places, 620 transitions, 17966 flow [2021-06-13 09:06:36,844 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17498, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17966, PETRI_PLACES=372, PETRI_TRANSITIONS=620} [2021-06-13 09:06:36,845 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 348 predicate places. [2021-06-13 09:06:36,845 INFO L482 AbstractCegarLoop]: Abstraction has has 372 places, 620 transitions, 17966 flow [2021-06-13 09:06:36,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:36,845 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:36,845 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:37,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2021-06-13 09:06:37,046 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:37,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:37,046 INFO L82 PathProgramCache]: Analyzing trace with hash 2137239566, now seen corresponding path program 28 times [2021-06-13 09:06:37,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:37,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93457759] [2021-06-13 09:06:37,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:37,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 09:06:37,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:37,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 09:06:37,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:37,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:37,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:37,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93457759] [2021-06-13 09:06:37,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93457759] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:37,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031328807] [2021-06-13 09:06:37,090 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:37,115 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:06:37,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:37,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-13 09:06:37,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:37,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:37,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:37,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:37,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:37,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:37,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:37,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:37,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:37,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:37,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:37,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:37,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:37,160 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-06-13 09:06:37,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:37,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:37,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 09:06:37,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 09:06:37,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:37,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,164 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-06-13 09:06:37,164 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:37,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:37,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:37,166 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:37,166 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:37,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:37,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:37,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:37,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:37,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:37,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:37,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:37,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:37,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:37,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:37,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:37,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:37,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:06:37,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 09:06:37,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 09:06:37,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:37,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,191 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:37,191 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:37,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:37,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:37,194 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:37,194 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:37,195 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-06-13 09:06:37,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:37,211 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-06-13 09:06:37,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:37,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:37,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031328807] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:37,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:37,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:06:37,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867459580] [2021-06-13 09:06:37,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:06:37,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:37,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:06:37,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:06:37,214 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:06:37,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 620 transitions, 17966 flow. Second operand has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:37,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:37,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:06:37,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:38,167 INFO L129 PetriNetUnfolder]: 1333/2589 cut-off events. [2021-06-13 09:06:38,167 INFO L130 PetriNetUnfolder]: For 111556/111597 co-relation queries the response was YES. [2021-06-13 09:06:38,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29560 conditions, 2589 events. 1333/2589 cut-off events. For 111556/111597 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 18324 event pairs, 189 based on Foata normal form. 2/2591 useless extension candidates. Maximal degree in co-relation 29242. Up to 1029 conditions per place. [2021-06-13 09:06:38,210 INFO L132 encePairwiseOnDemand]: 13/22 looper letters, 422 selfloop transitions, 214 changer transitions 5/648 dead transitions. [2021-06-13 09:06:38,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 648 transitions, 19768 flow [2021-06-13 09:06:38,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 09:06:38,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 09:06:38,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 160 transitions. [2021-06-13 09:06:38,211 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2021-06-13 09:06:38,211 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 160 transitions. [2021-06-13 09:06:38,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 160 transitions. [2021-06-13 09:06:38,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:38,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 160 transitions. [2021-06-13 09:06:38,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:38,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 22.0) internal successors, (242), 11 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:38,213 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 22.0) internal successors, (242), 11 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:38,213 INFO L185 Difference]: Start difference. First operand has 372 places, 620 transitions, 17966 flow. Second operand 10 states and 160 transitions. [2021-06-13 09:06:38,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 648 transitions, 19768 flow [2021-06-13 09:06:38,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 648 transitions, 19139 flow, removed 15 selfloop flow, removed 7 redundant places. [2021-06-13 09:06:38,747 INFO L241 Difference]: Finished difference. Result has 376 places, 624 transitions, 17881 flow [2021-06-13 09:06:38,747 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17368, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=17881, PETRI_PLACES=376, PETRI_TRANSITIONS=624} [2021-06-13 09:06:38,747 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 352 predicate places. [2021-06-13 09:06:38,748 INFO L482 AbstractCegarLoop]: Abstraction has has 376 places, 624 transitions, 17881 flow [2021-06-13 09:06:38,748 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.272727272727273) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:38,748 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:38,748 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:38,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:38,948 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:38,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:38,949 INFO L82 PathProgramCache]: Analyzing trace with hash -2019695418, now seen corresponding path program 1 times [2021-06-13 09:06:38,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:38,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338564492] [2021-06-13 09:06:38,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:38,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:38,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:38,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:38,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:38,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:38,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:38,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:38,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:38,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:38,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:38,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:38,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:38,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:38,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:38,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:38,985 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:38,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338564492] [2021-06-13 09:06:38,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338564492] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:38,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366614365] [2021-06-13 09:06:38,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:39,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:39,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:39,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:39,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:39,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:39,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:39,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:39,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:39,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:39,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:39,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:39,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:39,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:39,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:39,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:39,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:39,058 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:06:39,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:39,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:39,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:39,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:39,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:39,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:39,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366614365] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:39,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:39,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-13 09:06:39,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561081453] [2021-06-13 09:06:39,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 09:06:39,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:39,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 09:06:39,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-13 09:06:39,069 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:39,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 624 transitions, 17881 flow. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:39,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:39,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:39,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:39,834 INFO L129 PetriNetUnfolder]: 1445/2773 cut-off events. [2021-06-13 09:06:39,835 INFO L130 PetriNetUnfolder]: For 112821/112862 co-relation queries the response was YES. [2021-06-13 09:06:39,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31163 conditions, 2773 events. 1445/2773 cut-off events. For 112821/112862 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 19566 event pairs, 185 based on Foata normal form. 18/2791 useless extension candidates. Maximal degree in co-relation 30853. Up to 1065 conditions per place. [2021-06-13 09:06:39,881 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 448 selfloop transitions, 216 changer transitions 0/672 dead transitions. [2021-06-13 09:06:39,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 672 transitions, 20105 flow [2021-06-13 09:06:39,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:39,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:39,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2021-06-13 09:06:39,882 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-06-13 09:06:39,882 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 126 transitions. [2021-06-13 09:06:39,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 126 transitions. [2021-06-13 09:06:39,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:39,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 126 transitions. [2021-06-13 09:06:39,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:39,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:39,883 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:39,883 INFO L185 Difference]: Start difference. First operand has 376 places, 624 transitions, 17881 flow. Second operand 7 states and 126 transitions. [2021-06-13 09:06:39,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 672 transitions, 20105 flow [2021-06-13 09:06:40,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 672 transitions, 19692 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-06-13 09:06:40,540 INFO L241 Difference]: Finished difference. Result has 379 places, 627 transitions, 18050 flow [2021-06-13 09:06:40,541 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17490, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=624, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=213, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18050, PETRI_PLACES=379, PETRI_TRANSITIONS=627} [2021-06-13 09:06:40,541 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 355 predicate places. [2021-06-13 09:06:40,541 INFO L482 AbstractCegarLoop]: Abstraction has has 379 places, 627 transitions, 18050 flow [2021-06-13 09:06:40,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:40,541 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:40,541 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:40,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175,42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:40,742 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:40,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:40,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1907198688, now seen corresponding path program 1 times [2021-06-13 09:06:40,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:40,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689074416] [2021-06-13 09:06:40,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:40,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:40,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:40,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:40,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:40,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:40,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689074416] [2021-06-13 09:06:40,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689074416] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:40,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799456257] [2021-06-13 09:06:40,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:40,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:40,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:40,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:40,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:40,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:40,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:40,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:40,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:40,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:40,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:40,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:40,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:40,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:40,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:40,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:40,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:40,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:40,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:40,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:40,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:40,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:40,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:40,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:40,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:40,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:40,876 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:06:40,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:40,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:40,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:40,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:40,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:40,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:40,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:40,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799456257] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:40,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:40,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:06:40,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446177473] [2021-06-13 09:06:40,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:06:40,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:40,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:06:40,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:06:40,887 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:40,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 627 transitions, 18050 flow. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:40,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:40,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:40,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:41,651 INFO L129 PetriNetUnfolder]: 1477/2846 cut-off events. [2021-06-13 09:06:41,651 INFO L130 PetriNetUnfolder]: For 119308/119349 co-relation queries the response was YES. [2021-06-13 09:06:41,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31893 conditions, 2846 events. 1477/2846 cut-off events. For 119308/119349 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 20277 event pairs, 223 based on Foata normal form. 18/2864 useless extension candidates. Maximal degree in co-relation 31580. Up to 1353 conditions per place. [2021-06-13 09:06:41,696 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 413 selfloop transitions, 241 changer transitions 0/662 dead transitions. [2021-06-13 09:06:41,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 662 transitions, 20031 flow [2021-06-13 09:06:41,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:41,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:41,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2021-06-13 09:06:41,698 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8116883116883117 [2021-06-13 09:06:41,698 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 125 transitions. [2021-06-13 09:06:41,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 125 transitions. [2021-06-13 09:06:41,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:41,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 125 transitions. [2021-06-13 09:06:41,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:41,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:41,699 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:41,699 INFO L185 Difference]: Start difference. First operand has 379 places, 627 transitions, 18050 flow. Second operand 7 states and 125 transitions. [2021-06-13 09:06:41,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 662 transitions, 20031 flow [2021-06-13 09:06:42,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 662 transitions, 19593 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-06-13 09:06:42,304 INFO L241 Difference]: Finished difference. Result has 382 places, 629 transitions, 18189 flow [2021-06-13 09:06:42,304 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17616, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=627, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=239, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18189, PETRI_PLACES=382, PETRI_TRANSITIONS=629} [2021-06-13 09:06:42,304 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 358 predicate places. [2021-06-13 09:06:42,304 INFO L482 AbstractCegarLoop]: Abstraction has has 382 places, 629 transitions, 18189 flow [2021-06-13 09:06:42,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:42,304 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:42,304 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:42,505 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:42,505 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:42,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:42,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1912929320, now seen corresponding path program 2 times [2021-06-13 09:06:42,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:42,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16647622] [2021-06-13 09:06:42,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:42,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:42,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:42,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:42,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:42,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16647622] [2021-06-13 09:06:42,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16647622] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:42,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416131879] [2021-06-13 09:06:42,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:42,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:06:42,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:42,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:42,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:42,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:42,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:42,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:42,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:42,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:42,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:42,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:42,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:42,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:42,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:42,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:42,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:42,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:42,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:42,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:42,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:42,636 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:06:42,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:42,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:42,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:42,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:42,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:42,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:42,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:42,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416131879] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:42,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:42,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:06:42,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640597387] [2021-06-13 09:06:42,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:06:42,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:42,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:06:42,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:06:42,651 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:42,651 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 629 transitions, 18189 flow. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:42,651 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:42,651 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:42,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:43,506 INFO L129 PetriNetUnfolder]: 1521/2933 cut-off events. [2021-06-13 09:06:43,506 INFO L130 PetriNetUnfolder]: For 123314/123355 co-relation queries the response was YES. [2021-06-13 09:06:43,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32742 conditions, 2933 events. 1521/2933 cut-off events. For 123314/123355 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 20992 event pairs, 202 based on Foata normal form. 18/2951 useless extension candidates. Maximal degree in co-relation 32428. Up to 1065 conditions per place. [2021-06-13 09:06:43,548 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 459 selfloop transitions, 212 changer transitions 0/679 dead transitions. [2021-06-13 09:06:43,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 679 transitions, 20460 flow [2021-06-13 09:06:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:43,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:43,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2021-06-13 09:06:43,549 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8116883116883117 [2021-06-13 09:06:43,549 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 125 transitions. [2021-06-13 09:06:43,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 125 transitions. [2021-06-13 09:06:43,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:43,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 125 transitions. [2021-06-13 09:06:43,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:43,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:43,550 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:43,550 INFO L185 Difference]: Start difference. First operand has 382 places, 629 transitions, 18189 flow. Second operand 7 states and 125 transitions. [2021-06-13 09:06:43,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 679 transitions, 20460 flow [2021-06-13 09:06:44,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 679 transitions, 19974 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-06-13 09:06:44,132 INFO L241 Difference]: Finished difference. Result has 385 places, 634 transitions, 18308 flow [2021-06-13 09:06:44,132 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17703, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18308, PETRI_PLACES=385, PETRI_TRANSITIONS=634} [2021-06-13 09:06:44,132 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 361 predicate places. [2021-06-13 09:06:44,132 INFO L482 AbstractCegarLoop]: Abstraction has has 385 places, 634 transitions, 18308 flow [2021-06-13 09:06:44,133 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:44,133 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:44,133 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:44,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable177 [2021-06-13 09:06:44,339 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:44,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:44,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1508306844, now seen corresponding path program 2 times [2021-06-13 09:06:44,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:44,340 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255729064] [2021-06-13 09:06:44,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:44,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:44,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:44,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:44,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255729064] [2021-06-13 09:06:44,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255729064] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:44,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266285024] [2021-06-13 09:06:44,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:44,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:06:44,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:44,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:44,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:44,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:44,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:44,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:44,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:44,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:44,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:44,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:44,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:44,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:44,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:44,443 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-13 09:06:44,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:44,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:44,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:44,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:44,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:44,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,446 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:44,462 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:44,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:44,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:44,464 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:44,464 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:44,464 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:06:44,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:44,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:44,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:44,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:44,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:44,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:44,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:44,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:44,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:44,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:44,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:44,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:44,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:44,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:44,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:44,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:44,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266285024] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:44,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:44,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:06:44,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264174302] [2021-06-13 09:06:44,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:06:44,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:44,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:06:44,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:06:44,488 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:44,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 634 transitions, 18308 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:44,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:44,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:44,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:45,260 INFO L129 PetriNetUnfolder]: 1505/2929 cut-off events. [2021-06-13 09:06:45,260 INFO L130 PetriNetUnfolder]: For 123753/123794 co-relation queries the response was YES. [2021-06-13 09:06:45,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32428 conditions, 2929 events. 1505/2929 cut-off events. For 123753/123794 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 21227 event pairs, 223 based on Foata normal form. 26/2955 useless extension candidates. Maximal degree in co-relation 32112. Up to 1425 conditions per place. [2021-06-13 09:06:45,303 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 410 selfloop transitions, 229 changer transitions 14/661 dead transitions. [2021-06-13 09:06:45,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 661 transitions, 19800 flow [2021-06-13 09:06:45,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:45,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:45,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:06:45,304 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:06:45,304 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:06:45,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:06:45,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:45,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:06:45,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:45,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:45,305 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:45,305 INFO L185 Difference]: Start difference. First operand has 385 places, 634 transitions, 18308 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:06:45,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 661 transitions, 19800 flow [2021-06-13 09:06:45,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 661 transitions, 19459 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-06-13 09:06:46,008 INFO L241 Difference]: Finished difference. Result has 388 places, 621 transitions, 17688 flow [2021-06-13 09:06:46,009 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17503, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17688, PETRI_PLACES=388, PETRI_TRANSITIONS=621} [2021-06-13 09:06:46,009 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 364 predicate places. [2021-06-13 09:06:46,009 INFO L482 AbstractCegarLoop]: Abstraction has has 388 places, 621 transitions, 17688 flow [2021-06-13 09:06:46,009 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:46,009 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:46,009 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:46,209 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable178 [2021-06-13 09:06:46,210 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:46,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:46,210 INFO L82 PathProgramCache]: Analyzing trace with hash -927917316, now seen corresponding path program 3 times [2021-06-13 09:06:46,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:46,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704479973] [2021-06-13 09:06:46,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:46,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:46,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:46,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:46,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:46,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:46,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:46,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:46,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:46,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:46,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:46,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:46,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:46,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:46,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:46,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:46,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:46,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704479973] [2021-06-13 09:06:46,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704479973] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:06:46,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:06:46,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:06:46,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996947368] [2021-06-13 09:06:46,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:06:46,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:46,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:06:46,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:06:46,262 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:46,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 621 transitions, 17688 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:46,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:46,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:46,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:46,996 INFO L129 PetriNetUnfolder]: 1457/2786 cut-off events. [2021-06-13 09:06:46,996 INFO L130 PetriNetUnfolder]: For 115827/115868 co-relation queries the response was YES. [2021-06-13 09:06:47,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31132 conditions, 2786 events. 1457/2786 cut-off events. For 115827/115868 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 19602 event pairs, 173 based on Foata normal form. 26/2812 useless extension candidates. Maximal degree in co-relation 30816. Up to 1065 conditions per place. [2021-06-13 09:06:47,041 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 450 selfloop transitions, 189 changer transitions 9/656 dead transitions. [2021-06-13 09:06:47,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 656 transitions, 19496 flow [2021-06-13 09:06:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:47,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:47,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:06:47,042 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:06:47,042 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:06:47,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:06:47,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:47,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:06:47,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:47,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:47,043 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:47,043 INFO L185 Difference]: Start difference. First operand has 388 places, 621 transitions, 17688 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:06:47,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 656 transitions, 19496 flow [2021-06-13 09:06:47,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 656 transitions, 19014 flow, removed 25 selfloop flow, removed 5 redundant places. [2021-06-13 09:06:47,653 INFO L241 Difference]: Finished difference. Result has 388 places, 612 transitions, 17290 flow [2021-06-13 09:06:47,653 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16963, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17290, PETRI_PLACES=388, PETRI_TRANSITIONS=612} [2021-06-13 09:06:47,653 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 364 predicate places. [2021-06-13 09:06:47,653 INFO L482 AbstractCegarLoop]: Abstraction has has 388 places, 612 transitions, 17290 flow [2021-06-13 09:06:47,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:47,654 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:47,654 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:47,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-13 09:06:47,654 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:47,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:47,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1509766790, now seen corresponding path program 3 times [2021-06-13 09:06:47,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:47,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069721531] [2021-06-13 09:06:47,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:47,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:47,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:47,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:47,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:47,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069721531] [2021-06-13 09:06:47,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069721531] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:47,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640739854] [2021-06-13 09:06:47,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:47,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:06:47,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:47,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:47,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:47,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:47,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:47,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:47,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:47,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:47,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:47,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:47,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:47,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:47,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:47,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:47,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:47,754 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:06:47,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:47,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:47,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:47,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:47,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:47,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,757 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:47,757 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:47,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,759 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:47,759 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:47,760 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:06:47,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:47,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:47,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:47,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:47,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:47,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:47,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:47,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:47,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:47,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:47,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:47,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640739854] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:47,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:47,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:06:47,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298428856] [2021-06-13 09:06:47,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:06:47,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:47,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:06:47,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:06:47,781 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:47,781 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 612 transitions, 17290 flow. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:47,781 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:47,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:47,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:48,577 INFO L129 PetriNetUnfolder]: 1417/2697 cut-off events. [2021-06-13 09:06:48,578 INFO L130 PetriNetUnfolder]: For 110231/110272 co-relation queries the response was YES. [2021-06-13 09:06:48,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30041 conditions, 2697 events. 1417/2697 cut-off events. For 110231/110272 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 18837 event pairs, 209 based on Foata normal form. 26/2723 useless extension candidates. Maximal degree in co-relation 29725. Up to 1385 conditions per place. [2021-06-13 09:06:48,624 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 401 selfloop transitions, 211 changer transitions 9/629 dead transitions. [2021-06-13 09:06:48,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 629 transitions, 18612 flow [2021-06-13 09:06:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:48,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:48,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:06:48,625 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:06:48,625 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:06:48,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:06:48,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:48,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:06:48,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:48,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:48,626 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:48,626 INFO L185 Difference]: Start difference. First operand has 388 places, 612 transitions, 17290 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:06:48,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 629 transitions, 18612 flow [2021-06-13 09:06:49,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 629 transitions, 18238 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-06-13 09:06:49,135 INFO L241 Difference]: Finished difference. Result has 388 places, 599 transitions, 16814 flow [2021-06-13 09:06:49,136 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16572, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=16814, PETRI_PLACES=388, PETRI_TRANSITIONS=599} [2021-06-13 09:06:49,136 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 364 predicate places. [2021-06-13 09:06:49,136 INFO L482 AbstractCegarLoop]: Abstraction has has 388 places, 599 transitions, 16814 flow [2021-06-13 09:06:49,136 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:49,136 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:49,136 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:49,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:49,337 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:49,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:49,337 INFO L82 PathProgramCache]: Analyzing trace with hash -493623004, now seen corresponding path program 4 times [2021-06-13 09:06:49,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:49,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054629912] [2021-06-13 09:06:49,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:49,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:49,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:49,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:49,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054629912] [2021-06-13 09:06:49,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054629912] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:49,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770364426] [2021-06-13 09:06:49,374 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:49,420 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:06:49,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:49,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:49,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:49,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:49,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:49,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:49,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:49,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:49,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:49,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:49,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:49,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:49,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:49,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:49,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:49,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:49,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:49,467 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:06:49,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:49,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:49,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:49,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:49,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:49,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:49,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770364426] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:49,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:49,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-13 09:06:49,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511774119] [2021-06-13 09:06:49,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 09:06:49,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:49,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 09:06:49,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-13 09:06:49,479 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:49,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 599 transitions, 16814 flow. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:49,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:49,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:49,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:50,263 INFO L129 PetriNetUnfolder]: 1553/2944 cut-off events. [2021-06-13 09:06:50,264 INFO L130 PetriNetUnfolder]: For 118983/119024 co-relation queries the response was YES. [2021-06-13 09:06:50,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32455 conditions, 2944 events. 1553/2944 cut-off events. For 118983/119024 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 20694 event pairs, 207 based on Foata normal form. 18/2962 useless extension candidates. Maximal degree in co-relation 32145. Up to 1097 conditions per place. [2021-06-13 09:06:50,311 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 419 selfloop transitions, 218 changer transitions 1/646 dead transitions. [2021-06-13 09:06:50,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 646 transitions, 19054 flow [2021-06-13 09:06:50,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:50,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:50,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2021-06-13 09:06:50,312 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-06-13 09:06:50,312 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 126 transitions. [2021-06-13 09:06:50,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 126 transitions. [2021-06-13 09:06:50,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:50,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 126 transitions. [2021-06-13 09:06:50,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:50,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:50,313 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:50,313 INFO L185 Difference]: Start difference. First operand has 388 places, 599 transitions, 16814 flow. Second operand 7 states and 126 transitions. [2021-06-13 09:06:50,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 646 transitions, 19054 flow [2021-06-13 09:06:50,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 646 transitions, 18602 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-06-13 09:06:50,962 INFO L241 Difference]: Finished difference. Result has 388 places, 602 transitions, 16968 flow [2021-06-13 09:06:50,963 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16372, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=16968, PETRI_PLACES=388, PETRI_TRANSITIONS=602} [2021-06-13 09:06:50,963 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 364 predicate places. [2021-06-13 09:06:50,963 INFO L482 AbstractCegarLoop]: Abstraction has has 388 places, 602 transitions, 16968 flow [2021-06-13 09:06:50,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:50,963 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:50,963 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:51,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185,47 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:51,164 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:51,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:51,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1724701562, now seen corresponding path program 4 times [2021-06-13 09:06:51,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:51,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161372129] [2021-06-13 09:06:51,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:51,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:51,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:51,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:51,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:51,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:51,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161372129] [2021-06-13 09:06:51,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161372129] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:51,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40516136] [2021-06-13 09:06:51,208 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:51,250 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:06:51,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:51,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:51,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:51,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:51,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:51,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:51,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:51,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:51,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:51,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:51,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:51,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:51,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:51,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:51,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:51,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:51,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:51,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:51,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:51,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:51,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:51,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:51,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:51,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:51,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:51,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:51,313 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:06:51,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:51,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:51,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:51,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:51,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:51,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:51,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40516136] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:51,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:51,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:06:51,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589716230] [2021-06-13 09:06:51,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:06:51,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:51,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:06:51,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:06:51,325 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:51,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 602 transitions, 16968 flow. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:51,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:51,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:51,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:52,109 INFO L129 PetriNetUnfolder]: 1545/2931 cut-off events. [2021-06-13 09:06:52,109 INFO L130 PetriNetUnfolder]: For 121359/121400 co-relation queries the response was YES. [2021-06-13 09:06:52,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32379 conditions, 2931 events. 1545/2931 cut-off events. For 121359/121400 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 20610 event pairs, 235 based on Foata normal form. 18/2949 useless extension candidates. Maximal degree in co-relation 32062. Up to 1473 conditions per place. [2021-06-13 09:06:52,152 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 388 selfloop transitions, 236 changer transitions 1/633 dead transitions. [2021-06-13 09:06:52,152 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 633 transitions, 18759 flow [2021-06-13 09:06:52,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:52,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2021-06-13 09:06:52,153 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8116883116883117 [2021-06-13 09:06:52,153 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 125 transitions. [2021-06-13 09:06:52,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 125 transitions. [2021-06-13 09:06:52,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:52,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 125 transitions. [2021-06-13 09:06:52,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:52,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:52,154 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:52,154 INFO L185 Difference]: Start difference. First operand has 388 places, 602 transitions, 16968 flow. Second operand 7 states and 125 transitions. [2021-06-13 09:06:52,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 633 transitions, 18759 flow [2021-06-13 09:06:52,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 633 transitions, 18516 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-06-13 09:06:52,758 INFO L241 Difference]: Finished difference. Result has 392 places, 604 transitions, 17275 flow [2021-06-13 09:06:52,759 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16727, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17275, PETRI_PLACES=392, PETRI_TRANSITIONS=604} [2021-06-13 09:06:52,759 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 368 predicate places. [2021-06-13 09:06:52,759 INFO L482 AbstractCegarLoop]: Abstraction has has 392 places, 604 transitions, 17275 flow [2021-06-13 09:06:52,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:52,759 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:52,759 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:52,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:52,982 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:52,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:52,982 INFO L82 PathProgramCache]: Analyzing trace with hash -536487968, now seen corresponding path program 5 times [2021-06-13 09:06:52,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:52,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727111160] [2021-06-13 09:06:52,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:52,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:52,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:52,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:52,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:52,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:52,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:52,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:52,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:53,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:53,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:53,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:53,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:53,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727111160] [2021-06-13 09:06:53,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727111160] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:53,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866713416] [2021-06-13 09:06:53,019 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:53,045 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:06:53,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:53,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:53,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:53,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:53,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:53,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:53,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:53,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:53,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:53,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:53,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:53,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:53,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:53,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:53,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:53,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:53,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:53,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:53,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:53,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:53,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:53,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:53,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:53,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:53,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:53,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:53,089 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:06:53,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:53,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:53,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:06:53,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:06:53,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:53,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:53,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:53,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866713416] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:53,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:53,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:06:53,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603865584] [2021-06-13 09:06:53,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:06:53,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:53,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:06:53,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:06:53,100 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:53,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 604 transitions, 17275 flow. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:53,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:53,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:53,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:53,977 INFO L129 PetriNetUnfolder]: 1553/2943 cut-off events. [2021-06-13 09:06:53,977 INFO L130 PetriNetUnfolder]: For 123517/123558 co-relation queries the response was YES. [2021-06-13 09:06:54,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32956 conditions, 2943 events. 1553/2943 cut-off events. For 123517/123558 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 20703 event pairs, 193 based on Foata normal form. 18/2961 useless extension candidates. Maximal degree in co-relation 32636. Up to 1097 conditions per place. [2021-06-13 09:06:54,017 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 435 selfloop transitions, 206 changer transitions 1/650 dead transitions. [2021-06-13 09:06:54,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 650 transitions, 19469 flow [2021-06-13 09:06:54,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:54,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:54,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2021-06-13 09:06:54,018 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8116883116883117 [2021-06-13 09:06:54,018 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 125 transitions. [2021-06-13 09:06:54,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 125 transitions. [2021-06-13 09:06:54,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:54,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 125 transitions. [2021-06-13 09:06:54,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:54,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:54,019 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:54,019 INFO L185 Difference]: Start difference. First operand has 392 places, 604 transitions, 17275 flow. Second operand 7 states and 125 transitions. [2021-06-13 09:06:54,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 650 transitions, 19469 flow [2021-06-13 09:06:54,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 650 transitions, 19054 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-06-13 09:06:54,562 INFO L241 Difference]: Finished difference. Result has 396 places, 609 transitions, 17482 flow [2021-06-13 09:06:54,563 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16860, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=201, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17482, PETRI_PLACES=396, PETRI_TRANSITIONS=609} [2021-06-13 09:06:54,563 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 372 predicate places. [2021-06-13 09:06:54,563 INFO L482 AbstractCegarLoop]: Abstraction has has 396 places, 609 transitions, 17482 flow [2021-06-13 09:06:54,563 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:54,563 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:54,563 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:54,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:54,764 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:54,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:54,764 INFO L82 PathProgramCache]: Analyzing trace with hash -474938904, now seen corresponding path program 5 times [2021-06-13 09:06:54,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:54,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536226995] [2021-06-13 09:06:54,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:54,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:54,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:54,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:54,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536226995] [2021-06-13 09:06:54,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536226995] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:54,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720393143] [2021-06-13 09:06:54,799 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:54,825 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:06:54,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:54,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:54,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:54,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:54,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:54,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:54,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:54,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:54,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:54,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:54,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:54,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:54,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:54,849 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-13 09:06:54,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:06:54,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:54,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:54,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:06:54,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:54,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,852 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:54,853 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:54,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:54,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:54,854 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:54,855 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:54,855 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:06:54,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:54,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:54,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:54,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:54,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:54,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:54,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:54,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:54,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:54,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:54,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:54,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:54,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:54,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:54,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:54,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:54,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720393143] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:54,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:54,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:06:54,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910051996] [2021-06-13 09:06:54,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:06:54,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:54,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:06:54,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:06:54,879 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:54,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 609 transitions, 17482 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:54,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:54,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:54,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:55,655 INFO L129 PetriNetUnfolder]: 1541/2937 cut-off events. [2021-06-13 09:06:55,655 INFO L130 PetriNetUnfolder]: For 124329/124370 co-relation queries the response was YES. [2021-06-13 09:06:55,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32864 conditions, 2937 events. 1541/2937 cut-off events. For 124329/124370 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 20790 event pairs, 231 based on Foata normal form. 22/2959 useless extension candidates. Maximal degree in co-relation 32542. Up to 1489 conditions per place. [2021-06-13 09:06:55,698 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 389 selfloop transitions, 227 changer transitions 8/632 dead transitions. [2021-06-13 09:06:55,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 632 transitions, 18925 flow [2021-06-13 09:06:55,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:55,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:55,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:06:55,699 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:06:55,699 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:06:55,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:06:55,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:55,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:06:55,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:55,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:55,699 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:55,699 INFO L185 Difference]: Start difference. First operand has 396 places, 609 transitions, 17482 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:06:55,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 632 transitions, 18925 flow [2021-06-13 09:06:56,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 632 transitions, 18593 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-06-13 09:06:56,326 INFO L241 Difference]: Finished difference. Result has 399 places, 599 transitions, 17143 flow [2021-06-13 09:06:56,327 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16858, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17143, PETRI_PLACES=399, PETRI_TRANSITIONS=599} [2021-06-13 09:06:56,327 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 375 predicate places. [2021-06-13 09:06:56,327 INFO L482 AbstractCegarLoop]: Abstraction has has 399 places, 599 transitions, 17143 flow [2021-06-13 09:06:56,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:56,327 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:56,327 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:56,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable188 [2021-06-13 09:06:56,528 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:56,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:56,529 INFO L82 PathProgramCache]: Analyzing trace with hash 989994080, now seen corresponding path program 6 times [2021-06-13 09:06:56,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:56,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225746949] [2021-06-13 09:06:56,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:56,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:56,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:56,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:56,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225746949] [2021-06-13 09:06:56,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225746949] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:56,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706391632] [2021-06-13 09:06:56,566 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:56,599 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:06:56,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:56,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:56,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:56,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:56,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:56,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:56,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:56,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:56,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:56,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:56,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:56,634 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:06:56,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:56,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:56,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:56,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:56,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:56,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,637 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:56,638 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:56,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,640 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:56,640 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:56,641 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:06:56,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:56,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:56,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:56,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:56,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:56,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:56,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:56,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:56,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:56,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:56,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:56,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706391632] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:56,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:56,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:06:56,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923660531] [2021-06-13 09:06:56,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:06:56,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:56,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:06:56,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:06:56,665 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:56,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 599 transitions, 17143 flow. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:56,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:56,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:56,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:57,441 INFO L129 PetriNetUnfolder]: 1502/2840 cut-off events. [2021-06-13 09:06:57,442 INFO L130 PetriNetUnfolder]: For 121029/121070 co-relation queries the response was YES. [2021-06-13 09:06:57,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32093 conditions, 2840 events. 1502/2840 cut-off events. For 121029/121070 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 19821 event pairs, 203 based on Foata normal form. 26/2866 useless extension candidates. Maximal degree in co-relation 31771. Up to 1097 conditions per place. [2021-06-13 09:06:57,485 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 425 selfloop transitions, 184 changer transitions 9/626 dead transitions. [2021-06-13 09:06:57,485 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 626 transitions, 18774 flow [2021-06-13 09:06:57,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:57,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:06:57,486 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:06:57,486 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:06:57,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:06:57,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:57,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:06:57,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:57,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:57,487 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:57,487 INFO L185 Difference]: Start difference. First operand has 399 places, 599 transitions, 17143 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:06:57,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 626 transitions, 18774 flow [2021-06-13 09:06:58,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 626 transitions, 18338 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-06-13 09:06:58,079 INFO L241 Difference]: Finished difference. Result has 398 places, 586 transitions, 16674 flow [2021-06-13 09:06:58,079 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16479, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=16674, PETRI_PLACES=398, PETRI_TRANSITIONS=586} [2021-06-13 09:06:58,079 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 374 predicate places. [2021-06-13 09:06:58,079 INFO L482 AbstractCegarLoop]: Abstraction has has 398 places, 586 transitions, 16674 flow [2021-06-13 09:06:58,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:58,079 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:58,079 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:06:58,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:58,280 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:06:58,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:06:58,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1156031648, now seen corresponding path program 6 times [2021-06-13 09:06:58,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:06:58,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56880837] [2021-06-13 09:06:58,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:06:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:06:58,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:58,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:06:58,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:58,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:06:58,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56880837] [2021-06-13 09:06:58,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56880837] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:58,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930233135] [2021-06-13 09:06:58,319 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:06:58,350 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:06:58,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:06:58,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:06:58,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:06:58,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:58,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:58,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:58,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:58,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:58,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:06:58,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:58,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:58,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:58,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:06:58,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:58,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:58,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:58,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:58,407 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:06:58,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:58,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:58,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:06:58,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:06:58,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:58,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,411 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:58,411 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:58,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:58,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:58,414 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:06:58,415 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:58,415 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:06:58,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:06:58,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:58,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:58,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:58,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:58,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:58,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:58,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:06:58,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:06:58,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:06:58,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:06:58,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:06:58,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:06:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:06:58,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930233135] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:06:58,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:06:58,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:06:58,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500933960] [2021-06-13 09:06:58,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:06:58,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:06:58,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:06:58,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:06:58,443 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:06:58,443 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 586 transitions, 16674 flow. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:58,443 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:06:58,443 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:06:58,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:06:59,172 INFO L129 PetriNetUnfolder]: 1472/2761 cut-off events. [2021-06-13 09:06:59,173 INFO L130 PetriNetUnfolder]: For 116932/116973 co-relation queries the response was YES. [2021-06-13 09:06:59,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31131 conditions, 2761 events. 1472/2761 cut-off events. For 116932/116973 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 19015 event pairs, 226 based on Foata normal form. 20/2781 useless extension candidates. Maximal degree in co-relation 30810. Up to 1441 conditions per place. [2021-06-13 09:06:59,219 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 380 selfloop transitions, 211 changer transitions 8/607 dead transitions. [2021-06-13 09:06:59,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 607 transitions, 18071 flow [2021-06-13 09:06:59,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:06:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:06:59,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:06:59,220 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:06:59,220 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:06:59,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:06:59,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:06:59,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:06:59,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:59,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:59,220 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:59,221 INFO L185 Difference]: Start difference. First operand has 398 places, 586 transitions, 16674 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:06:59,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 607 transitions, 18071 flow [2021-06-13 09:06:59,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 607 transitions, 17679 flow, removed 13 selfloop flow, removed 7 redundant places. [2021-06-13 09:06:59,805 INFO L241 Difference]: Finished difference. Result has 395 places, 577 transitions, 16413 flow [2021-06-13 09:06:59,806 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16084, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=16413, PETRI_PLACES=395, PETRI_TRANSITIONS=577} [2021-06-13 09:06:59,806 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 371 predicate places. [2021-06-13 09:06:59,806 INFO L482 AbstractCegarLoop]: Abstraction has has 395 places, 577 transitions, 16413 flow [2021-06-13 09:06:59,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:06:59,806 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:06:59,806 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:00,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable194 [2021-06-13 09:07:00,007 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:00,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:00,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1646462414, now seen corresponding path program 7 times [2021-06-13 09:07:00,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:00,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247085273] [2021-06-13 09:07:00,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:00,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:07:00,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:07:00,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:00,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:00,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:00,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 09:07:00,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 09:07:00,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:00,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247085273] [2021-06-13 09:07:00,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247085273] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:00,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320504595] [2021-06-13 09:07:00,067 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:00,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:00,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:00,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:00,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:00,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:00,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:00,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:00,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:00,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:00,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:00,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:00,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:00,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:00,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:00,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:00,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:00,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:00,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:00,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:00,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:00,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:00,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:00,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:00,193 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:00,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:00,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:00,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:00,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:00,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:00,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:00,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:00,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320504595] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:00,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:00,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:07:00,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536572621] [2021-06-13 09:07:00,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:07:00,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:00,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:07:00,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:07:00,201 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:07:00,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 577 transitions, 16413 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:00,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:00,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:07:00,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:01,392 INFO L129 PetriNetUnfolder]: 1894/3538 cut-off events. [2021-06-13 09:07:01,392 INFO L130 PetriNetUnfolder]: For 141858/141899 co-relation queries the response was YES. [2021-06-13 09:07:01,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38310 conditions, 3538 events. 1894/3538 cut-off events. For 141858/141899 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 25382 event pairs, 238 based on Foata normal form. 19/3557 useless extension candidates. Maximal degree in co-relation 37991. Up to 1087 conditions per place. [2021-06-13 09:07:01,454 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 490 selfloop transitions, 150 changer transitions 17/664 dead transitions. [2021-06-13 09:07:01,454 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 664 transitions, 19545 flow [2021-06-13 09:07:01,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 09:07:01,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 09:07:01,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 189 transitions. [2021-06-13 09:07:01,455 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.78099173553719 [2021-06-13 09:07:01,455 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 189 transitions. [2021-06-13 09:07:01,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 189 transitions. [2021-06-13 09:07:01,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:01,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 189 transitions. [2021-06-13 09:07:01,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:01,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:01,456 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:01,456 INFO L185 Difference]: Start difference. First operand has 395 places, 577 transitions, 16413 flow. Second operand 11 states and 189 transitions. [2021-06-13 09:07:01,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 664 transitions, 19545 flow [2021-06-13 09:07:02,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 664 transitions, 19087 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-06-13 09:07:02,169 INFO L241 Difference]: Finished difference. Result has 404 places, 589 transitions, 16833 flow [2021-06-13 09:07:02,169 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=15987, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16833, PETRI_PLACES=404, PETRI_TRANSITIONS=589} [2021-06-13 09:07:02,170 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 380 predicate places. [2021-06-13 09:07:02,170 INFO L482 AbstractCegarLoop]: Abstraction has has 404 places, 589 transitions, 16833 flow [2021-06-13 09:07:02,170 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:02,170 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:02,170 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:02,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:02,370 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:02,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:02,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1972303320, now seen corresponding path program 7 times [2021-06-13 09:07:02,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:02,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095730921] [2021-06-13 09:07:02,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:02,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:02,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:02,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:02,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:02,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:02,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:02,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:02,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095730921] [2021-06-13 09:07:02,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095730921] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:02,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246119449] [2021-06-13 09:07:02,413 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:02,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:02,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:02,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:02,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:02,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:02,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:02,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:02,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:02,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:02,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:02,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:02,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:02,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:02,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:02,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:02,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:02,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:02,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:02,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:02,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:02,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:02,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:02,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:02,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:02,492 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:02,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:02,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:02,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:02,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:02,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:02,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,500 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:02,500 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:02,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,502 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:02,503 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:02,503 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:07:02,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:02,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:02,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:02,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:02,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:02,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:02,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:02,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:07:02,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:02,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:02,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:02,527 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246119449] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:02,527 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:02,527 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:07:02,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50025590] [2021-06-13 09:07:02,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:07:02,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:02,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:07:02,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:07:02,528 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:02,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 589 transitions, 16833 flow. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:02,528 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:02,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:02,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:03,372 INFO L129 PetriNetUnfolder]: 1880/3513 cut-off events. [2021-06-13 09:07:03,372 INFO L130 PetriNetUnfolder]: For 151855/151896 co-relation queries the response was YES. [2021-06-13 09:07:03,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38812 conditions, 3513 events. 1880/3513 cut-off events. For 151855/151896 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 25330 event pairs, 395 based on Foata normal form. 12/3525 useless extension candidates. Maximal degree in co-relation 38487. Up to 2163 conditions per place. [2021-06-13 09:07:03,436 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 455 selfloop transitions, 147 changer transitions 1/612 dead transitions. [2021-06-13 09:07:03,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 612 transitions, 18475 flow [2021-06-13 09:07:03,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:03,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:07:03,437 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:07:03,437 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:07:03,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:07:03,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:03,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:07:03,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:03,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:03,438 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:03,438 INFO L185 Difference]: Start difference. First operand has 404 places, 589 transitions, 16833 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:07:03,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 612 transitions, 18475 flow [2021-06-13 09:07:04,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 612 transitions, 18257 flow, removed 52 selfloop flow, removed 4 redundant places. [2021-06-13 09:07:04,291 INFO L241 Difference]: Finished difference. Result has 405 places, 591 transitions, 17008 flow [2021-06-13 09:07:04,292 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16616, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17008, PETRI_PLACES=405, PETRI_TRANSITIONS=591} [2021-06-13 09:07:04,292 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 381 predicate places. [2021-06-13 09:07:04,292 INFO L482 AbstractCegarLoop]: Abstraction has has 405 places, 591 transitions, 17008 flow [2021-06-13 09:07:04,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:04,292 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:04,292 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:04,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable198 [2021-06-13 09:07:04,509 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:04,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:04,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1997750, now seen corresponding path program 8 times [2021-06-13 09:07:04,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:04,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235219644] [2021-06-13 09:07:04,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:04,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:04,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:04,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:07:04,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:04,552 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:04,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235219644] [2021-06-13 09:07:04,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235219644] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:04,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181174165] [2021-06-13 09:07:04,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:04,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:07:04,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:04,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:04,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:04,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:04,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:04,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:04,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:04,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:04,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:04,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:04,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:04,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:04,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:04,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:04,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:04,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:04,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:04,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:04,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:04,641 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:04,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:04,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:04,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:04,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:04,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:04,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:04,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:04,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181174165] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:04,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:04,647 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:07:04,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613616236] [2021-06-13 09:07:04,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:07:04,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:04,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:07:04,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:07:04,648 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:04,648 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 591 transitions, 17008 flow. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:04,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:04,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:04,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:05,662 INFO L129 PetriNetUnfolder]: 2042/3847 cut-off events. [2021-06-13 09:07:05,662 INFO L130 PetriNetUnfolder]: For 149575/149616 co-relation queries the response was YES. [2021-06-13 09:07:05,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40646 conditions, 3847 events. 2042/3847 cut-off events. For 149575/149616 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 28222 event pairs, 277 based on Foata normal form. 18/3865 useless extension candidates. Maximal degree in co-relation 40320. Up to 1293 conditions per place. [2021-06-13 09:07:05,725 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 485 selfloop transitions, 162 changer transitions 0/656 dead transitions. [2021-06-13 09:07:05,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 656 transitions, 19596 flow [2021-06-13 09:07:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:05,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2021-06-13 09:07:05,726 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8116883116883117 [2021-06-13 09:07:05,726 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 125 transitions. [2021-06-13 09:07:05,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 125 transitions. [2021-06-13 09:07:05,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:05,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 125 transitions. [2021-06-13 09:07:05,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:05,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:05,727 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:05,727 INFO L185 Difference]: Start difference. First operand has 405 places, 591 transitions, 17008 flow. Second operand 7 states and 125 transitions. [2021-06-13 09:07:05,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 656 transitions, 19596 flow [2021-06-13 09:07:06,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 656 transitions, 19394 flow, removed 11 selfloop flow, removed 3 redundant places. [2021-06-13 09:07:06,519 INFO L241 Difference]: Finished difference. Result has 412 places, 610 transitions, 17929 flow [2021-06-13 09:07:06,519 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=16806, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17929, PETRI_PLACES=412, PETRI_TRANSITIONS=610} [2021-06-13 09:07:06,519 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 388 predicate places. [2021-06-13 09:07:06,519 INFO L482 AbstractCegarLoop]: Abstraction has has 412 places, 610 transitions, 17929 flow [2021-06-13 09:07:06,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:06,520 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:06,520 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:06,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2021-06-13 09:07:06,733 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:06,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:06,733 INFO L82 PathProgramCache]: Analyzing trace with hash 790361350, now seen corresponding path program 8 times [2021-06-13 09:07:06,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:06,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281206021] [2021-06-13 09:07:06,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:06,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:06,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:06,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:06,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:06,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:06,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:06,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:06,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:06,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:06,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:06,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:06,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:06,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:06,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:06,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:06,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:06,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281206021] [2021-06-13 09:07:06,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281206021] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:07:06,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:07:06,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:07:06,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803615719] [2021-06-13 09:07:06,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:07:06,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:06,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:07:06,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:07:06,769 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:06,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 610 transitions, 17929 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:06,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:06,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:06,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:07,882 INFO L129 PetriNetUnfolder]: 2030/3831 cut-off events. [2021-06-13 09:07:07,882 INFO L130 PetriNetUnfolder]: For 158663/158704 co-relation queries the response was YES. [2021-06-13 09:07:07,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41150 conditions, 3831 events. 2030/3831 cut-off events. For 158663/158704 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 28244 event pairs, 414 based on Foata normal form. 14/3845 useless extension candidates. Maximal degree in co-relation 40820. Up to 2419 conditions per place. [2021-06-13 09:07:07,945 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 441 selfloop transitions, 170 changer transitions 16/636 dead transitions. [2021-06-13 09:07:07,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 636 transitions, 19496 flow [2021-06-13 09:07:07,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:07,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:07:07,946 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:07:07,946 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:07:07,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:07:07,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:07,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:07:07,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:07,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:07,946 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:07,946 INFO L185 Difference]: Start difference. First operand has 412 places, 610 transitions, 17929 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:07:07,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 636 transitions, 19496 flow [2021-06-13 09:07:08,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 636 transitions, 19300 flow, removed 13 selfloop flow, removed 3 redundant places. [2021-06-13 09:07:08,803 INFO L241 Difference]: Finished difference. Result has 415 places, 602 transitions, 17670 flow [2021-06-13 09:07:08,803 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17505, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17670, PETRI_PLACES=415, PETRI_TRANSITIONS=602} [2021-06-13 09:07:08,803 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 391 predicate places. [2021-06-13 09:07:08,803 INFO L482 AbstractCegarLoop]: Abstraction has has 415 places, 602 transitions, 17670 flow [2021-06-13 09:07:08,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:08,803 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:08,803 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:08,803 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-06-13 09:07:08,804 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:08,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:08,804 INFO L82 PathProgramCache]: Analyzing trace with hash 262075526, now seen corresponding path program 9 times [2021-06-13 09:07:08,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:08,804 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188206857] [2021-06-13 09:07:08,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:08,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:08,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:08,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:08,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:08,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:08,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:08,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:08,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:08,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:08,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:08,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:08,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:08,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:08,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:08,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:08,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188206857] [2021-06-13 09:07:08,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188206857] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:07:08,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:07:08,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:07:08,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131338879] [2021-06-13 09:07:08,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:07:08,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:08,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:07:08,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:07:08,839 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:08,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 602 transitions, 17670 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:08,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:08,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:08,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:09,835 INFO L129 PetriNetUnfolder]: 1989/3721 cut-off events. [2021-06-13 09:07:09,835 INFO L130 PetriNetUnfolder]: For 152658/152699 co-relation queries the response was YES. [2021-06-13 09:07:09,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40343 conditions, 3721 events. 1989/3721 cut-off events. For 152658/152699 co-relation queries the response was YES. Maximal size of possible extension queue 382. Compared 26979 event pairs, 273 based on Foata normal form. 14/3735 useless extension candidates. Maximal degree in co-relation 40013. Up to 1274 conditions per place. [2021-06-13 09:07:10,002 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 481 selfloop transitions, 146 changer transitions 6/642 dead transitions. [2021-06-13 09:07:10,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 642 transitions, 19590 flow [2021-06-13 09:07:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:10,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:10,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:07:10,003 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:07:10,003 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:07:10,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:07:10,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:10,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:07:10,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:10,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:10,004 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:10,004 INFO L185 Difference]: Start difference. First operand has 415 places, 602 transitions, 17670 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:07:10,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 642 transitions, 19590 flow [2021-06-13 09:07:10,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 642 transitions, 19233 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-06-13 09:07:10,748 INFO L241 Difference]: Finished difference. Result has 412 places, 596 transitions, 17418 flow [2021-06-13 09:07:10,749 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17207, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17418, PETRI_PLACES=412, PETRI_TRANSITIONS=596} [2021-06-13 09:07:10,749 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 388 predicate places. [2021-06-13 09:07:10,749 INFO L482 AbstractCegarLoop]: Abstraction has has 412 places, 596 transitions, 17418 flow [2021-06-13 09:07:10,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:10,749 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:10,749 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:10,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-06-13 09:07:10,749 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:10,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:10,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1448787856, now seen corresponding path program 9 times [2021-06-13 09:07:10,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:10,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75569345] [2021-06-13 09:07:10,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:10,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:10,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:10,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:10,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:10,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:07:10,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:10,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:10,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75569345] [2021-06-13 09:07:10,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75569345] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:10,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410834859] [2021-06-13 09:07:10,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:10,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:07:10,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:10,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:10,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:10,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:10,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:10,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:10,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:10,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:10,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:10,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:10,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:10,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:10,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:10,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:10,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:10,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:10,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:10,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:10,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:10,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:10,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:10,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:10,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:10,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:10,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:10,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:10,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:10,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:10,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:10,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:10,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:10,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:10,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:10,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:10,946 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:10,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:10,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:10,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:10,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:10,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:10,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:10,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:10,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410834859] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:10,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:10,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:07:10,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438501584] [2021-06-13 09:07:10,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:07:10,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:10,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:07:10,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:07:10,956 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:10,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 596 transitions, 17418 flow. Second operand has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:10,956 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:10,956 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:10,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:11,931 INFO L129 PetriNetUnfolder]: 1984/3691 cut-off events. [2021-06-13 09:07:11,931 INFO L130 PetriNetUnfolder]: For 152612/152652 co-relation queries the response was YES. [2021-06-13 09:07:11,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40048 conditions, 3691 events. 1984/3691 cut-off events. For 152612/152652 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 26644 event pairs, 408 based on Foata normal form. 10/3701 useless extension candidates. Maximal degree in co-relation 39720. Up to 2375 conditions per place. [2021-06-13 09:07:11,992 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 431 selfloop transitions, 179 changer transitions 0/619 dead transitions. [2021-06-13 09:07:11,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 619 transitions, 19051 flow [2021-06-13 09:07:11,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:11,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:11,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2021-06-13 09:07:11,993 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8051948051948052 [2021-06-13 09:07:11,993 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 124 transitions. [2021-06-13 09:07:11,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 124 transitions. [2021-06-13 09:07:11,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:11,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 124 transitions. [2021-06-13 09:07:11,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:11,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:11,994 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:11,994 INFO L185 Difference]: Start difference. First operand has 412 places, 596 transitions, 17418 flow. Second operand 7 states and 124 transitions. [2021-06-13 09:07:11,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 619 transitions, 19051 flow [2021-06-13 09:07:12,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 619 transitions, 18830 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-06-13 09:07:12,888 INFO L241 Difference]: Finished difference. Result has 412 places, 598 transitions, 17637 flow [2021-06-13 09:07:12,888 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17197, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17637, PETRI_PLACES=412, PETRI_TRANSITIONS=598} [2021-06-13 09:07:12,888 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 388 predicate places. [2021-06-13 09:07:12,889 INFO L482 AbstractCegarLoop]: Abstraction has has 412 places, 598 transitions, 17637 flow [2021-06-13 09:07:12,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:12,889 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:12,889 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:13,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:13,093 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:13,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:13,093 INFO L82 PathProgramCache]: Analyzing trace with hash -823993594, now seen corresponding path program 10 times [2021-06-13 09:07:13,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:13,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796039921] [2021-06-13 09:07:13,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:13,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:07:13,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:07:13,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:13,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:07:13,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:13,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 09:07:13,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 09:07:13,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:13,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796039921] [2021-06-13 09:07:13,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796039921] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:13,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148737573] [2021-06-13 09:07:13,149 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:13,195 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:07:13,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:13,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:13,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:13,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:13,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:13,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:13,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:13,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:13,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:13,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:13,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:13,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:13,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:13,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:13,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:13,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:13,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:13,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:13,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:13,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:13,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:13,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:13,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:13,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:13,279 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:13,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:13,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:13,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:13,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:13,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:13,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:13,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148737573] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:13,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:13,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:07:13,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107640424] [2021-06-13 09:07:13,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:07:13,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:13,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:07:13,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:07:13,287 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:07:13,287 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 598 transitions, 17637 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:13,287 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:13,287 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:07:13,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:14,482 INFO L129 PetriNetUnfolder]: 2088/3903 cut-off events. [2021-06-13 09:07:14,482 INFO L130 PetriNetUnfolder]: For 157867/157908 co-relation queries the response was YES. [2021-06-13 09:07:14,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42228 conditions, 3903 events. 2088/3903 cut-off events. For 157867/157908 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 28504 event pairs, 322 based on Foata normal form. 13/3916 useless extension candidates. Maximal degree in co-relation 41901. Up to 1719 conditions per place. [2021-06-13 09:07:14,545 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 504 selfloop transitions, 139 changer transitions 11/661 dead transitions. [2021-06-13 09:07:14,545 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 661 transitions, 20249 flow [2021-06-13 09:07:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 09:07:14,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 09:07:14,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 153 transitions. [2021-06-13 09:07:14,546 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-13 09:07:14,546 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 153 transitions. [2021-06-13 09:07:14,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 153 transitions. [2021-06-13 09:07:14,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:14,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 153 transitions. [2021-06-13 09:07:14,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.0) internal successors, (153), 9 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:14,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:14,547 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:14,547 INFO L185 Difference]: Start difference. First operand has 412 places, 598 transitions, 17637 flow. Second operand 9 states and 153 transitions. [2021-06-13 09:07:14,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 661 transitions, 20249 flow [2021-06-13 09:07:15,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 661 transitions, 19777 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-06-13 09:07:15,471 INFO L241 Difference]: Finished difference. Result has 419 places, 615 transitions, 18076 flow [2021-06-13 09:07:15,471 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17173, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=18076, PETRI_PLACES=419, PETRI_TRANSITIONS=615} [2021-06-13 09:07:15,471 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 395 predicate places. [2021-06-13 09:07:15,471 INFO L482 AbstractCegarLoop]: Abstraction has has 419 places, 615 transitions, 18076 flow [2021-06-13 09:07:15,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:15,471 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:15,471 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:15,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable205 [2021-06-13 09:07:15,672 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:15,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:15,672 INFO L82 PathProgramCache]: Analyzing trace with hash -552656284, now seen corresponding path program 10 times [2021-06-13 09:07:15,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:15,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527687618] [2021-06-13 09:07:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:15,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:15,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:15,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:15,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:15,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527687618] [2021-06-13 09:07:15,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527687618] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:15,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634198221] [2021-06-13 09:07:15,709 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:15,735 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:07:15,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:15,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:15,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:15,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:15,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:15,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:15,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:15,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:15,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:15,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:15,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:15,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:15,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:15,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:15,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:15,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:15,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:15,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:15,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:15,772 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-13 09:07:15,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:07:15,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:15,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:15,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:07:15,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:15,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,775 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:15,776 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:15,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:15,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:15,777 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:15,778 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:15,779 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:07:15,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:15,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:15,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:15,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:15,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:15,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:15,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:15,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:15,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:15,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:15,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:15,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:15,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:07:15,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:15,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:15,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:15,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634198221] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:15,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:15,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:07:15,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675355208] [2021-06-13 09:07:15,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:07:15,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:15,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:07:15,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:07:15,802 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:15,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 615 transitions, 18076 flow. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:15,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:15,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:15,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:16,822 INFO L129 PetriNetUnfolder]: 2064/3845 cut-off events. [2021-06-13 09:07:16,822 INFO L130 PetriNetUnfolder]: For 167203/167244 co-relation queries the response was YES. [2021-06-13 09:07:16,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42493 conditions, 3845 events. 2064/3845 cut-off events. For 167203/167244 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 27971 event pairs, 420 based on Foata normal form. 10/3855 useless extension candidates. Maximal degree in co-relation 42159. Up to 2509 conditions per place. [2021-06-13 09:07:16,886 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 443 selfloop transitions, 176 changer transitions 4/632 dead transitions. [2021-06-13 09:07:16,886 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 632 transitions, 19525 flow [2021-06-13 09:07:16,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:16,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:16,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions. [2021-06-13 09:07:16,887 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2021-06-13 09:07:16,887 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 121 transitions. [2021-06-13 09:07:16,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 121 transitions. [2021-06-13 09:07:16,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:16,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 121 transitions. [2021-06-13 09:07:16,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:16,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:16,887 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:16,887 INFO L185 Difference]: Start difference. First operand has 419 places, 615 transitions, 18076 flow. Second operand 7 states and 121 transitions. [2021-06-13 09:07:16,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 632 transitions, 19525 flow [2021-06-13 09:07:17,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 632 transitions, 19355 flow, removed 55 selfloop flow, removed 4 redundant places. [2021-06-13 09:07:17,917 INFO L241 Difference]: Finished difference. Result has 418 places, 611 transitions, 18065 flow [2021-06-13 09:07:17,917 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17799, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18065, PETRI_PLACES=418, PETRI_TRANSITIONS=611} [2021-06-13 09:07:17,917 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 394 predicate places. [2021-06-13 09:07:17,917 INFO L482 AbstractCegarLoop]: Abstraction has has 418 places, 611 transitions, 18065 flow [2021-06-13 09:07:17,917 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:17,918 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:17,918 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:18,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:18,118 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:18,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:18,118 INFO L82 PathProgramCache]: Analyzing trace with hash -207136138, now seen corresponding path program 11 times [2021-06-13 09:07:18,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:18,119 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751027770] [2021-06-13 09:07:18,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:18,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:18,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:07:18,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:18,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:07:18,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:07:18,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 09:07:18,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:18,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:18,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751027770] [2021-06-13 09:07:18,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751027770] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:18,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499081030] [2021-06-13 09:07:18,174 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:18,204 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:07:18,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:18,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:18,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:18,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:18,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:18,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:18,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:18,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:18,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:18,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:18,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:18,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:18,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:18,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:18,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:18,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:18,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:18,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:18,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:18,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:18,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:18,271 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:18,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:18,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:18,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:18,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:18,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:18,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,276 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:18,277 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:18,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,279 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:18,280 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:18,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:07:18,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:18,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:18,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:18,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:18,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:18,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:18,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:18,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:07:18,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:18,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:18,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:18,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499081030] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:07:18,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-13 09:07:18,309 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-06-13 09:07:18,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711510670] [2021-06-13 09:07:18,309 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:07:18,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:18,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:07:18,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-06-13 09:07:18,310 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:18,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 611 transitions, 18065 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:18,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:18,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:18,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:19,361 INFO L129 PetriNetUnfolder]: 2050/3814 cut-off events. [2021-06-13 09:07:19,361 INFO L130 PetriNetUnfolder]: For 155194/155235 co-relation queries the response was YES. [2021-06-13 09:07:19,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41288 conditions, 3814 events. 2050/3814 cut-off events. For 155194/155235 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 27547 event pairs, 328 based on Foata normal form. 10/3824 useless extension candidates. Maximal degree in co-relation 40956. Up to 1672 conditions per place. [2021-06-13 09:07:19,423 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 502 selfloop transitions, 129 changer transitions 4/644 dead transitions. [2021-06-13 09:07:19,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 644 transitions, 19908 flow [2021-06-13 09:07:19,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:19,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions. [2021-06-13 09:07:19,424 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2021-06-13 09:07:19,424 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 121 transitions. [2021-06-13 09:07:19,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 121 transitions. [2021-06-13 09:07:19,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:19,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 121 transitions. [2021-06-13 09:07:19,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:19,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:19,424 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:19,424 INFO L185 Difference]: Start difference. First operand has 418 places, 611 transitions, 18065 flow. Second operand 7 states and 121 transitions. [2021-06-13 09:07:19,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 644 transitions, 19908 flow [2021-06-13 09:07:20,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 644 transitions, 19557 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-06-13 09:07:20,272 INFO L241 Difference]: Finished difference. Result has 418 places, 609 transitions, 17986 flow [2021-06-13 09:07:20,272 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17679, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17986, PETRI_PLACES=418, PETRI_TRANSITIONS=609} [2021-06-13 09:07:20,272 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 394 predicate places. [2021-06-13 09:07:20,272 INFO L482 AbstractCegarLoop]: Abstraction has has 418 places, 609 transitions, 17986 flow [2021-06-13 09:07:20,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:20,272 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:20,272 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:20,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable209 [2021-06-13 09:07:20,474 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:20,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:20,474 INFO L82 PathProgramCache]: Analyzing trace with hash -320866284, now seen corresponding path program 11 times [2021-06-13 09:07:20,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:20,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861155476] [2021-06-13 09:07:20,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:20,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:20,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:20,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:20,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:20,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:20,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:20,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861155476] [2021-06-13 09:07:20,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861155476] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:20,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260843850] [2021-06-13 09:07:20,514 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:20,550 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:07:20,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:20,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:20,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:20,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:20,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:20,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:20,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:20,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:20,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:20,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:20,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:20,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:20,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:20,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:20,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:20,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:20,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:20,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:20,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:20,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:20,601 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:20,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:20,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:20,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:20,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:20,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:20,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,603 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:20,612 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:20,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,615 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:20,616 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:20,616 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:07:20,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:20,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:20,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:20,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:20,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:20,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:20,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:20,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:07:20,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:20,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:20,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:20,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260843850] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:20,643 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:20,643 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:07:20,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654826093] [2021-06-13 09:07:20,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:07:20,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:20,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:07:20,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:07:20,644 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:20,644 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 609 transitions, 17986 flow. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:20,644 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:20,644 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:20,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:21,699 INFO L129 PetriNetUnfolder]: 2030/3782 cut-off events. [2021-06-13 09:07:21,699 INFO L130 PetriNetUnfolder]: For 154209/154218 co-relation queries the response was YES. [2021-06-13 09:07:21,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40892 conditions, 3782 events. 2030/3782 cut-off events. For 154209/154218 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 27406 event pairs, 393 based on Foata normal form. 11/3793 useless extension candidates. Maximal degree in co-relation 40628. Up to 2489 conditions per place. [2021-06-13 09:07:21,761 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 443 selfloop transitions, 167 changer transitions 6/625 dead transitions. [2021-06-13 09:07:21,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 625 transitions, 19353 flow [2021-06-13 09:07:21,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:21,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:07:21,762 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:07:21,762 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:07:21,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:07:21,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:21,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:07:21,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:21,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:21,762 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:21,762 INFO L185 Difference]: Start difference. First operand has 418 places, 609 transitions, 17986 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:07:21,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 625 transitions, 19353 flow [2021-06-13 09:07:22,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 625 transitions, 19168 flow, removed 18 selfloop flow, removed 5 redundant places. [2021-06-13 09:07:22,584 INFO L241 Difference]: Finished difference. Result has 418 places, 602 transitions, 17862 flow [2021-06-13 09:07:22,585 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17618, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=605, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17862, PETRI_PLACES=418, PETRI_TRANSITIONS=602} [2021-06-13 09:07:22,585 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 394 predicate places. [2021-06-13 09:07:22,585 INFO L482 AbstractCegarLoop]: Abstraction has has 418 places, 602 transitions, 17862 flow [2021-06-13 09:07:22,585 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:22,585 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:22,585 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:22,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable212 [2021-06-13 09:07:22,786 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:22,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:22,786 INFO L82 PathProgramCache]: Analyzing trace with hash 2101114152, now seen corresponding path program 12 times [2021-06-13 09:07:22,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:22,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664236454] [2021-06-13 09:07:22,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:22,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:22,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:22,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:22,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:22,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:22,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:22,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:22,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:22,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:22,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:22,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:22,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:22,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:22,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:22,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:22,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:22,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664236454] [2021-06-13 09:07:22,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664236454] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:07:22,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:07:22,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:07:22,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976906234] [2021-06-13 09:07:22,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:07:22,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:22,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:07:22,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:07:22,819 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:22,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 602 transitions, 17862 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:22,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:22,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:22,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:23,851 INFO L129 PetriNetUnfolder]: 2018/3726 cut-off events. [2021-06-13 09:07:23,851 INFO L130 PetriNetUnfolder]: For 149309/149350 co-relation queries the response was YES. [2021-06-13 09:07:23,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40271 conditions, 3726 events. 2018/3726 cut-off events. For 149309/149350 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 26576 event pairs, 343 based on Foata normal form. 10/3736 useless extension candidates. Maximal degree in co-relation 39942. Up to 1648 conditions per place. [2021-06-13 09:07:23,908 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 513 selfloop transitions, 109 changer transitions 1/632 dead transitions. [2021-06-13 09:07:23,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 632 transitions, 19632 flow [2021-06-13 09:07:23,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:23,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:23,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 119 transitions. [2021-06-13 09:07:23,909 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-13 09:07:23,909 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 119 transitions. [2021-06-13 09:07:23,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 119 transitions. [2021-06-13 09:07:23,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:23,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 119 transitions. [2021-06-13 09:07:23,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:23,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:23,910 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:23,910 INFO L185 Difference]: Start difference. First operand has 418 places, 602 transitions, 17862 flow. Second operand 7 states and 119 transitions. [2021-06-13 09:07:23,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 632 transitions, 19632 flow [2021-06-13 09:07:24,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 632 transitions, 19290 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-06-13 09:07:24,687 INFO L241 Difference]: Finished difference. Result has 418 places, 601 transitions, 17706 flow [2021-06-13 09:07:24,688 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17520, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17706, PETRI_PLACES=418, PETRI_TRANSITIONS=601} [2021-06-13 09:07:24,688 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 394 predicate places. [2021-06-13 09:07:24,688 INFO L482 AbstractCegarLoop]: Abstraction has has 418 places, 601 transitions, 17706 flow [2021-06-13 09:07:24,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:24,688 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:24,688 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:24,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-06-13 09:07:24,688 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:24,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:24,688 INFO L82 PathProgramCache]: Analyzing trace with hash -464773544, now seen corresponding path program 12 times [2021-06-13 09:07:24,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:24,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629569686] [2021-06-13 09:07:24,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:24,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:24,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:24,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:24,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:24,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:24,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:24,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:24,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:24,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:24,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:24,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:24,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:24,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:24,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:24,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:24,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:24,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629569686] [2021-06-13 09:07:24,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629569686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:07:24,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:07:24,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:07:24,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329114017] [2021-06-13 09:07:24,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:07:24,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:24,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:07:24,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:07:24,728 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:24,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 601 transitions, 17706 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:24,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:24,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:24,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:25,701 INFO L129 PetriNetUnfolder]: 2017/3761 cut-off events. [2021-06-13 09:07:25,701 INFO L130 PetriNetUnfolder]: For 150820/150829 co-relation queries the response was YES. [2021-06-13 09:07:25,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40263 conditions, 3761 events. 2017/3761 cut-off events. For 150820/150829 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 27176 event pairs, 379 based on Foata normal form. 7/3768 useless extension candidates. Maximal degree in co-relation 39933. Up to 2474 conditions per place. [2021-06-13 09:07:25,762 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 473 selfloop transitions, 137 changer transitions 4/623 dead transitions. [2021-06-13 09:07:25,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 623 transitions, 19277 flow [2021-06-13 09:07:25,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:25,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 118 transitions. [2021-06-13 09:07:25,763 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7662337662337663 [2021-06-13 09:07:25,763 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 118 transitions. [2021-06-13 09:07:25,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 118 transitions. [2021-06-13 09:07:25,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:25,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 118 transitions. [2021-06-13 09:07:25,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:25,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:25,763 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:25,763 INFO L185 Difference]: Start difference. First operand has 418 places, 601 transitions, 17706 flow. Second operand 7 states and 118 transitions. [2021-06-13 09:07:25,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 623 transitions, 19277 flow [2021-06-13 09:07:26,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 623 transitions, 19124 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-06-13 09:07:26,672 INFO L241 Difference]: Finished difference. Result has 421 places, 599 transitions, 17746 flow [2021-06-13 09:07:26,672 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17513, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17746, PETRI_PLACES=421, PETRI_TRANSITIONS=599} [2021-06-13 09:07:26,672 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 397 predicate places. [2021-06-13 09:07:26,672 INFO L482 AbstractCegarLoop]: Abstraction has has 421 places, 599 transitions, 17746 flow [2021-06-13 09:07:26,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:26,672 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:26,672 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:26,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-06-13 09:07:26,672 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:26,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:26,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1094741630, now seen corresponding path program 13 times [2021-06-13 09:07:26,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:26,673 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597439696] [2021-06-13 09:07:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:26,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:26,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:26,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:26,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:26,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:26,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:26,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:26,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:26,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:26,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:26,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:26,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:26,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:26,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:26,705 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:26,705 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597439696] [2021-06-13 09:07:26,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597439696] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:07:26,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:07:26,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:07:26,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430999219] [2021-06-13 09:07:26,705 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:07:26,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:26,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:07:26,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:07:26,706 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:26,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 599 transitions, 17746 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:26,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:26,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:26,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:27,665 INFO L129 PetriNetUnfolder]: 2012/3716 cut-off events. [2021-06-13 09:07:27,666 INFO L130 PetriNetUnfolder]: For 152726/152735 co-relation queries the response was YES. [2021-06-13 09:07:27,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40315 conditions, 3716 events. 2012/3716 cut-off events. For 152726/152735 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 26444 event pairs, 344 based on Foata normal form. 5/3721 useless extension candidates. Maximal degree in co-relation 40069. Up to 1652 conditions per place. [2021-06-13 09:07:27,728 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 506 selfloop transitions, 106 changer transitions 4/625 dead transitions. [2021-06-13 09:07:27,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 625 transitions, 19436 flow [2021-06-13 09:07:27,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:27,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:27,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 116 transitions. [2021-06-13 09:07:27,729 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7532467532467533 [2021-06-13 09:07:27,729 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 116 transitions. [2021-06-13 09:07:27,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 116 transitions. [2021-06-13 09:07:27,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:27,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 116 transitions. [2021-06-13 09:07:27,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:27,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:27,730 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:27,730 INFO L185 Difference]: Start difference. First operand has 421 places, 599 transitions, 17746 flow. Second operand 7 states and 116 transitions. [2021-06-13 09:07:27,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 625 transitions, 19436 flow [2021-06-13 09:07:28,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 625 transitions, 19092 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-06-13 09:07:28,571 INFO L241 Difference]: Finished difference. Result has 417 places, 596 transitions, 17517 flow [2021-06-13 09:07:28,571 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17364, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17517, PETRI_PLACES=417, PETRI_TRANSITIONS=596} [2021-06-13 09:07:28,571 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 393 predicate places. [2021-06-13 09:07:28,571 INFO L482 AbstractCegarLoop]: Abstraction has has 417 places, 596 transitions, 17517 flow [2021-06-13 09:07:28,572 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:28,572 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:28,572 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:28,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-06-13 09:07:28,572 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:28,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:28,572 INFO L82 PathProgramCache]: Analyzing trace with hash 548320006, now seen corresponding path program 13 times [2021-06-13 09:07:28,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:28,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736495575] [2021-06-13 09:07:28,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:28,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:28,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:28,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:28,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:28,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:28,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:28,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:28,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:28,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:28,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:28,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:28,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:28,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:28,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:28,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:28,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:28,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736495575] [2021-06-13 09:07:28,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736495575] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:07:28,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:07:28,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:07:28,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566923021] [2021-06-13 09:07:28,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:07:28,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:28,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:07:28,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:07:28,616 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:28,616 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 596 transitions, 17517 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:28,616 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:28,616 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:28,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:29,631 INFO L129 PetriNetUnfolder]: 2007/3720 cut-off events. [2021-06-13 09:07:29,631 INFO L130 PetriNetUnfolder]: For 150215/150224 co-relation queries the response was YES. [2021-06-13 09:07:29,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40095 conditions, 3720 events. 2007/3720 cut-off events. For 150215/150224 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 26630 event pairs, 381 based on Foata normal form. 5/3725 useless extension candidates. Maximal degree in co-relation 39766. Up to 2466 conditions per place. [2021-06-13 09:07:29,693 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 465 selfloop transitions, 133 changer transitions 7/614 dead transitions. [2021-06-13 09:07:29,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 614 transitions, 19003 flow [2021-06-13 09:07:29,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:29,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 115 transitions. [2021-06-13 09:07:29,693 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7467532467532467 [2021-06-13 09:07:29,694 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 115 transitions. [2021-06-13 09:07:29,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 115 transitions. [2021-06-13 09:07:29,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:29,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 115 transitions. [2021-06-13 09:07:29,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:29,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:29,694 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:29,694 INFO L185 Difference]: Start difference. First operand has 417 places, 596 transitions, 17517 flow. Second operand 7 states and 115 transitions. [2021-06-13 09:07:29,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 614 transitions, 19003 flow [2021-06-13 09:07:30,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 614 transitions, 18775 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-06-13 09:07:30,503 INFO L241 Difference]: Finished difference. Result has 412 places, 592 transitions, 17406 flow [2021-06-13 09:07:30,503 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17267, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17406, PETRI_PLACES=412, PETRI_TRANSITIONS=592} [2021-06-13 09:07:30,503 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 388 predicate places. [2021-06-13 09:07:30,503 INFO L482 AbstractCegarLoop]: Abstraction has has 412 places, 592 transitions, 17406 flow [2021-06-13 09:07:30,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:30,504 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:30,504 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:30,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-06-13 09:07:30,504 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:30,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:30,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1106641896, now seen corresponding path program 14 times [2021-06-13 09:07:30,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:30,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491013939] [2021-06-13 09:07:30,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:30,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:30,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:30,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:30,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:07:30,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:30,546 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:30,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491013939] [2021-06-13 09:07:30,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491013939] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:30,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787255391] [2021-06-13 09:07:30,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:30,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:07:30,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:30,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:30,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:30,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:30,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:30,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:30,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:30,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:30,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:30,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:30,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:30,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:30,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:30,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:30,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:30,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:30,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:30,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:30,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:30,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:30,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:30,656 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:30,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:30,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:30,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:30,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:30,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:30,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:30,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:30,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787255391] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:30,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:30,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:07:30,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286214783] [2021-06-13 09:07:30,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:07:30,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:30,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:07:30,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:07:30,665 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:30,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 592 transitions, 17406 flow. Second operand has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:30,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:30,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:30,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:31,759 INFO L129 PetriNetUnfolder]: 2060/3797 cut-off events. [2021-06-13 09:07:31,759 INFO L130 PetriNetUnfolder]: For 154381/154390 co-relation queries the response was YES. [2021-06-13 09:07:31,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40959 conditions, 3797 events. 2060/3797 cut-off events. For 154381/154390 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 27200 event pairs, 405 based on Foata normal form. 7/3804 useless extension candidates. Maximal degree in co-relation 40632. Up to 2490 conditions per place. [2021-06-13 09:07:31,815 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 476 selfloop transitions, 136 changer transitions 0/621 dead transitions. [2021-06-13 09:07:31,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 621 transitions, 19263 flow [2021-06-13 09:07:31,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:31,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:31,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2021-06-13 09:07:31,816 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8051948051948052 [2021-06-13 09:07:31,816 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 124 transitions. [2021-06-13 09:07:31,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 124 transitions. [2021-06-13 09:07:31,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:31,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 124 transitions. [2021-06-13 09:07:31,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:31,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:31,817 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:31,817 INFO L185 Difference]: Start difference. First operand has 412 places, 592 transitions, 17406 flow. Second operand 7 states and 124 transitions. [2021-06-13 09:07:31,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 621 transitions, 19263 flow [2021-06-13 09:07:32,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 621 transitions, 18984 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-06-13 09:07:32,536 INFO L241 Difference]: Finished difference. Result has 412 places, 601 transitions, 17759 flow [2021-06-13 09:07:32,536 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17139, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17759, PETRI_PLACES=412, PETRI_TRANSITIONS=601} [2021-06-13 09:07:32,536 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 388 predicate places. [2021-06-13 09:07:32,536 INFO L482 AbstractCegarLoop]: Abstraction has has 412 places, 601 transitions, 17759 flow [2021-06-13 09:07:32,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:32,536 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:32,536 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:32,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable219 [2021-06-13 09:07:32,737 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:32,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:32,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1786840788, now seen corresponding path program 15 times [2021-06-13 09:07:32,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:32,737 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075234761] [2021-06-13 09:07:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:32,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:32,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:32,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:32,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:32,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:32,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:32,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:32,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:32,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:32,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:32,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:32,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:32,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:32,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:32,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:32,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:32,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075234761] [2021-06-13 09:07:32,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075234761] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:07:32,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:07:32,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:07:32,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477863488] [2021-06-13 09:07:32,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:07:32,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:32,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:07:32,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:07:32,780 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:32,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 601 transitions, 17759 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:32,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:32,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:32,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:33,757 INFO L129 PetriNetUnfolder]: 2048/3786 cut-off events. [2021-06-13 09:07:33,758 INFO L130 PetriNetUnfolder]: For 158065/158074 co-relation queries the response was YES. [2021-06-13 09:07:33,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41313 conditions, 3786 events. 2048/3786 cut-off events. For 158065/158074 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 27180 event pairs, 411 based on Foata normal form. 11/3797 useless extension candidates. Maximal degree in co-relation 40983. Up to 2490 conditions per place. [2021-06-13 09:07:33,820 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 484 selfloop transitions, 125 changer transitions 2/620 dead transitions. [2021-06-13 09:07:33,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 620 transitions, 19277 flow [2021-06-13 09:07:33,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:33,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:33,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:07:33,821 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:07:33,821 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:07:33,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:07:33,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:33,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:07:33,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:33,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:33,822 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:33,822 INFO L185 Difference]: Start difference. First operand has 412 places, 601 transitions, 17759 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:07:33,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 620 transitions, 19277 flow [2021-06-13 09:07:34,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 620 transitions, 18982 flow, removed 24 selfloop flow, removed 4 redundant places. [2021-06-13 09:07:34,716 INFO L241 Difference]: Finished difference. Result has 416 places, 598 transitions, 17625 flow [2021-06-13 09:07:34,716 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17401, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17625, PETRI_PLACES=416, PETRI_TRANSITIONS=598} [2021-06-13 09:07:34,717 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 392 predicate places. [2021-06-13 09:07:34,717 INFO L482 AbstractCegarLoop]: Abstraction has has 416 places, 598 transitions, 17625 flow [2021-06-13 09:07:34,717 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:34,717 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:34,717 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:34,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-06-13 09:07:34,717 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:34,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:34,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1250056020, now seen corresponding path program 16 times [2021-06-13 09:07:34,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:34,717 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210599097] [2021-06-13 09:07:34,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:34,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:34,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:34,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:34,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:34,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:34,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:34,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:34,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:34,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:34,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:34,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:34,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:34,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:34,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:34,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:34,755 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:34,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210599097] [2021-06-13 09:07:34,755 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210599097] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:07:34,755 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:07:34,755 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:07:34,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032737999] [2021-06-13 09:07:34,755 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:07:34,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:34,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:07:34,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:07:34,756 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:34,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 598 transitions, 17625 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:34,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:34,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:34,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:35,755 INFO L129 PetriNetUnfolder]: 2038/3744 cut-off events. [2021-06-13 09:07:35,756 INFO L130 PetriNetUnfolder]: For 158043/158052 co-relation queries the response was YES. [2021-06-13 09:07:35,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41059 conditions, 3744 events. 2038/3744 cut-off events. For 158043/158052 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 26604 event pairs, 414 based on Foata normal form. 7/3751 useless extension candidates. Maximal degree in co-relation 40728. Up to 2490 conditions per place. [2021-06-13 09:07:35,819 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 480 selfloop transitions, 124 changer transitions 2/615 dead transitions. [2021-06-13 09:07:35,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 615 transitions, 19086 flow [2021-06-13 09:07:35,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:35,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:35,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 119 transitions. [2021-06-13 09:07:35,820 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-13 09:07:35,820 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 119 transitions. [2021-06-13 09:07:35,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 119 transitions. [2021-06-13 09:07:35,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:35,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 119 transitions. [2021-06-13 09:07:35,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:35,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:35,820 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:35,821 INFO L185 Difference]: Start difference. First operand has 416 places, 598 transitions, 17625 flow. Second operand 7 states and 119 transitions. [2021-06-13 09:07:35,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 615 transitions, 19086 flow [2021-06-13 09:07:36,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 615 transitions, 18851 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-06-13 09:07:36,624 INFO L241 Difference]: Finished difference. Result has 416 places, 595 transitions, 17535 flow [2021-06-13 09:07:36,624 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17339, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17535, PETRI_PLACES=416, PETRI_TRANSITIONS=595} [2021-06-13 09:07:36,625 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 392 predicate places. [2021-06-13 09:07:36,625 INFO L482 AbstractCegarLoop]: Abstraction has has 416 places, 595 transitions, 17535 flow [2021-06-13 09:07:36,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:36,625 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:36,625 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:36,625 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-06-13 09:07:36,625 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:36,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:36,625 INFO L82 PathProgramCache]: Analyzing trace with hash -929246232, now seen corresponding path program 17 times [2021-06-13 09:07:36,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:36,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461713601] [2021-06-13 09:07:36,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:36,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:07:36,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:36,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:36,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:36,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:36,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 09:07:36,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 09:07:36,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:36,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461713601] [2021-06-13 09:07:36,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461713601] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:36,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541141415] [2021-06-13 09:07:36,699 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:36,732 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:07:36,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:36,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:36,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:36,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:36,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:36,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:36,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:36,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:36,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:36,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:36,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:36,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:36,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:36,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:36,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:36,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:36,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:36,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:36,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:36,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:36,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:36,813 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:36,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:36,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:36,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:36,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:36,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:36,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:36,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541141415] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:36,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:36,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:07:36,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083162449] [2021-06-13 09:07:36,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:07:36,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:36,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:07:36,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:07:36,824 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:07:36,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 595 transitions, 17535 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:36,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:36,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:07:36,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:38,047 INFO L129 PetriNetUnfolder]: 2061/3766 cut-off events. [2021-06-13 09:07:38,048 INFO L130 PetriNetUnfolder]: For 161143/161152 co-relation queries the response was YES. [2021-06-13 09:07:38,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41381 conditions, 3766 events. 2061/3766 cut-off events. For 161143/161152 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 26653 event pairs, 402 based on Foata normal form. 7/3773 useless extension candidates. Maximal degree in co-relation 41051. Up to 2551 conditions per place. [2021-06-13 09:07:38,110 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 474 selfloop transitions, 137 changer transitions 0/618 dead transitions. [2021-06-13 09:07:38,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 618 transitions, 19267 flow [2021-06-13 09:07:38,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:38,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:38,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 118 transitions. [2021-06-13 09:07:38,111 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7662337662337663 [2021-06-13 09:07:38,111 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 118 transitions. [2021-06-13 09:07:38,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 118 transitions. [2021-06-13 09:07:38,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:38,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 118 transitions. [2021-06-13 09:07:38,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:38,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:38,116 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:38,117 INFO L185 Difference]: Start difference. First operand has 416 places, 595 transitions, 17535 flow. Second operand 7 states and 118 transitions. [2021-06-13 09:07:38,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 618 transitions, 19267 flow [2021-06-13 09:07:39,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 618 transitions, 18945 flow, removed 10 selfloop flow, removed 10 redundant places. [2021-06-13 09:07:39,240 INFO L241 Difference]: Finished difference. Result has 412 places, 598 transitions, 17664 flow [2021-06-13 09:07:39,240 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17185, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17664, PETRI_PLACES=412, PETRI_TRANSITIONS=598} [2021-06-13 09:07:39,241 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 388 predicate places. [2021-06-13 09:07:39,241 INFO L482 AbstractCegarLoop]: Abstraction has has 412 places, 598 transitions, 17664 flow [2021-06-13 09:07:39,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:39,241 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:39,241 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:39,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable222 [2021-06-13 09:07:39,445 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:39,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:39,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1470315860, now seen corresponding path program 18 times [2021-06-13 09:07:39,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:39,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667613728] [2021-06-13 09:07:39,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:39,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:39,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:39,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:39,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:39,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:39,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:39,479 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:39,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667613728] [2021-06-13 09:07:39,479 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667613728] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:39,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598202735] [2021-06-13 09:07:39,479 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:39,506 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:07:39,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:39,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:39,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:39,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:39,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:39,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:39,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:39,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:39,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:39,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:39,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:39,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:39,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:39,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:39,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:39,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:39,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:39,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:39,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:39,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:39,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:39,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:39,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:39,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:39,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:39,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,551 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:39,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:39,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:39,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:39,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:39,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:39,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,554 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:39,554 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:39,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:39,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:39,556 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:39,557 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:39,557 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:07:39,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:39,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:39,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:39,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:39,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:39,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:39,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:39,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:39,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:39,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:07:39,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:39,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:39,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598202735] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:39,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:39,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:07:39,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437221742] [2021-06-13 09:07:39,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:07:39,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:39,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:07:39,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:07:39,580 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:39,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 598 transitions, 17664 flow. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:39,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:39,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:39,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:40,569 INFO L129 PetriNetUnfolder]: 2057/3737 cut-off events. [2021-06-13 09:07:40,570 INFO L130 PetriNetUnfolder]: For 162376/162417 co-relation queries the response was YES. [2021-06-13 09:07:40,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41108 conditions, 3737 events. 2057/3737 cut-off events. For 162376/162417 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 26330 event pairs, 415 based on Foata normal form. 8/3745 useless extension candidates. Maximal degree in co-relation 40778. Up to 2506 conditions per place. [2021-06-13 09:07:40,629 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 473 selfloop transitions, 130 changer transitions 2/614 dead transitions. [2021-06-13 09:07:40,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 614 transitions, 19112 flow [2021-06-13 09:07:40,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 119 transitions. [2021-06-13 09:07:40,630 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-13 09:07:40,630 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 119 transitions. [2021-06-13 09:07:40,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 119 transitions. [2021-06-13 09:07:40,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:40,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 119 transitions. [2021-06-13 09:07:40,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:40,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:40,631 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:40,631 INFO L185 Difference]: Start difference. First operand has 412 places, 598 transitions, 17664 flow. Second operand 7 states and 119 transitions. [2021-06-13 09:07:40,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 614 transitions, 19112 flow [2021-06-13 09:07:41,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 614 transitions, 18766 flow, removed 26 selfloop flow, removed 7 redundant places. [2021-06-13 09:07:41,436 INFO L241 Difference]: Finished difference. Result has 410 places, 596 transitions, 17510 flow [2021-06-13 09:07:41,437 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17282, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17510, PETRI_PLACES=410, PETRI_TRANSITIONS=596} [2021-06-13 09:07:41,437 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 386 predicate places. [2021-06-13 09:07:41,437 INFO L482 AbstractCegarLoop]: Abstraction has has 410 places, 596 transitions, 17510 flow [2021-06-13 09:07:41,437 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:41,437 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:41,437 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:41,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable223 [2021-06-13 09:07:41,638 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:41,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:41,638 INFO L82 PathProgramCache]: Analyzing trace with hash -749416288, now seen corresponding path program 19 times [2021-06-13 09:07:41,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:41,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982595529] [2021-06-13 09:07:41,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:41,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:41,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:07:41,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:41,672 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:41,672 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982595529] [2021-06-13 09:07:41,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982595529] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:41,672 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560366791] [2021-06-13 09:07:41,672 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:41,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:41,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:41,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:41,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:41,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:41,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:41,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:41,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:41,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:41,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:41,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:41,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:41,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:41,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:41,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:41,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:41,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:41,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:41,740 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:41,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:41,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:41,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:41,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:41,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:41,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:41,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:41,753 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560366791] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:41,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:41,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:07:41,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469915632] [2021-06-13 09:07:41,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:07:41,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:41,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:07:41,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:07:41,754 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:41,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 596 transitions, 17510 flow. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:41,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:41,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:41,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:42,917 INFO L129 PetriNetUnfolder]: 2460/4550 cut-off events. [2021-06-13 09:07:42,917 INFO L130 PetriNetUnfolder]: For 186396/186436 co-relation queries the response was YES. [2021-06-13 09:07:42,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48112 conditions, 4550 events. 2460/4550 cut-off events. For 186396/186436 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 33472 event pairs, 366 based on Foata normal form. 14/4564 useless extension candidates. Maximal degree in co-relation 47783. Up to 1630 conditions per place. [2021-06-13 09:07:42,993 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 498 selfloop transitions, 153 changer transitions 0/660 dead transitions. [2021-06-13 09:07:42,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 660 transitions, 20348 flow [2021-06-13 09:07:42,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:42,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:42,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2021-06-13 09:07:42,994 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8116883116883117 [2021-06-13 09:07:42,994 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 125 transitions. [2021-06-13 09:07:42,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 125 transitions. [2021-06-13 09:07:42,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:42,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 125 transitions. [2021-06-13 09:07:42,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:42,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:42,994 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:42,994 INFO L185 Difference]: Start difference. First operand has 410 places, 596 transitions, 17510 flow. Second operand 7 states and 125 transitions. [2021-06-13 09:07:42,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 660 transitions, 20348 flow [2021-06-13 09:07:43,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 660 transitions, 20074 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-06-13 09:07:43,969 INFO L241 Difference]: Finished difference. Result has 413 places, 614 transitions, 18447 flow [2021-06-13 09:07:43,970 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=17262, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18447, PETRI_PLACES=413, PETRI_TRANSITIONS=614} [2021-06-13 09:07:43,970 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 389 predicate places. [2021-06-13 09:07:43,970 INFO L482 AbstractCegarLoop]: Abstraction has has 413 places, 614 transitions, 18447 flow [2021-06-13 09:07:43,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:43,970 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:43,970 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:44,170 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:44,171 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:44,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:44,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1205277864, now seen corresponding path program 14 times [2021-06-13 09:07:44,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:44,171 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29322365] [2021-06-13 09:07:44,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:44,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:44,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:44,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:44,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:44,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:44,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:44,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:44,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:44,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:44,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:44,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:44,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:44,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:44,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:44,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:44,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:44,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29322365] [2021-06-13 09:07:44,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29322365] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:07:44,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:07:44,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:07:44,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457573529] [2021-06-13 09:07:44,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:07:44,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:44,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:07:44,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:07:44,200 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:44,200 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 614 transitions, 18447 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:44,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:44,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:44,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:45,441 INFO L129 PetriNetUnfolder]: 2475/4624 cut-off events. [2021-06-13 09:07:45,441 INFO L130 PetriNetUnfolder]: For 200632/200673 co-relation queries the response was YES. [2021-06-13 09:07:45,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49666 conditions, 4624 events. 2475/4624 cut-off events. For 200632/200673 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 34655 event pairs, 510 based on Foata normal form. 14/4638 useless extension candidates. Maximal degree in co-relation 49331. Up to 2758 conditions per place. [2021-06-13 09:07:45,514 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 438 selfloop transitions, 189 changer transitions 8/644 dead transitions. [2021-06-13 09:07:45,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 644 transitions, 20362 flow [2021-06-13 09:07:45,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:45,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:45,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:07:45,515 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:07:45,515 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:07:45,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:07:45,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:45,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:07:45,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:45,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:45,515 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:45,515 INFO L185 Difference]: Start difference. First operand has 413 places, 614 transitions, 18447 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:07:45,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 644 transitions, 20362 flow [2021-06-13 09:07:46,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 644 transitions, 20314 flow, removed 14 selfloop flow, removed 1 redundant places. [2021-06-13 09:07:46,535 INFO L241 Difference]: Finished difference. Result has 421 places, 616 transitions, 18868 flow [2021-06-13 09:07:46,535 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=18300, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=612, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18868, PETRI_PLACES=421, PETRI_TRANSITIONS=616} [2021-06-13 09:07:46,535 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 397 predicate places. [2021-06-13 09:07:46,535 INFO L482 AbstractCegarLoop]: Abstraction has has 421 places, 616 transitions, 18868 flow [2021-06-13 09:07:46,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:46,535 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:46,536 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:46,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-06-13 09:07:46,536 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:46,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:46,536 INFO L82 PathProgramCache]: Analyzing trace with hash -2126733112, now seen corresponding path program 20 times [2021-06-13 09:07:46,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:46,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109572257] [2021-06-13 09:07:46,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:46,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:46,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:07:46,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:46,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:46,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109572257] [2021-06-13 09:07:46,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109572257] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:46,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011611097] [2021-06-13 09:07:46,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:46,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:07:46,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:46,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:46,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:46,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:46,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:46,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:46,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:46,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:46,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:46,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:46,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:46,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:46,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:46,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:46,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:46,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:46,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:46,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:46,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:46,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:46,638 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:46,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:46,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:46,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:46,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:46,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:46,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:46,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:46,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011611097] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:46,645 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:46,645 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-13 09:07:46,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175519248] [2021-06-13 09:07:46,646 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 09:07:46,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:46,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 09:07:46,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 09:07:46,646 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:46,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 616 transitions, 18868 flow. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:46,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:46,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:46,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:48,225 INFO L129 PetriNetUnfolder]: 2833/5215 cut-off events. [2021-06-13 09:07:48,225 INFO L130 PetriNetUnfolder]: For 239518/239559 co-relation queries the response was YES. [2021-06-13 09:07:48,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56678 conditions, 5215 events. 2833/5215 cut-off events. For 239518/239559 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 39100 event pairs, 359 based on Foata normal form. 14/5229 useless extension candidates. Maximal degree in co-relation 56419. Up to 1361 conditions per place. [2021-06-13 09:07:48,312 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 482 selfloop transitions, 193 changer transitions 0/684 dead transitions. [2021-06-13 09:07:48,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 684 transitions, 21895 flow [2021-06-13 09:07:48,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:48,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2021-06-13 09:07:48,313 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-06-13 09:07:48,313 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 126 transitions. [2021-06-13 09:07:48,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 126 transitions. [2021-06-13 09:07:48,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:48,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 126 transitions. [2021-06-13 09:07:48,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:48,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:48,314 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:48,314 INFO L185 Difference]: Start difference. First operand has 421 places, 616 transitions, 18868 flow. Second operand 7 states and 126 transitions. [2021-06-13 09:07:48,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 684 transitions, 21895 flow [2021-06-13 09:07:49,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 684 transitions, 21546 flow, removed 22 selfloop flow, removed 4 redundant places. [2021-06-13 09:07:49,598 INFO L241 Difference]: Finished difference. Result has 425 places, 630 transitions, 19639 flow [2021-06-13 09:07:49,599 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=18519, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=19639, PETRI_PLACES=425, PETRI_TRANSITIONS=630} [2021-06-13 09:07:49,599 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 401 predicate places. [2021-06-13 09:07:49,599 INFO L482 AbstractCegarLoop]: Abstraction has has 425 places, 630 transitions, 19639 flow [2021-06-13 09:07:49,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:49,599 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:49,599 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:49,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable228 [2021-06-13 09:07:49,799 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:49,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:49,800 INFO L82 PathProgramCache]: Analyzing trace with hash 602807270, now seen corresponding path program 15 times [2021-06-13 09:07:49,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:49,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876612036] [2021-06-13 09:07:49,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:49,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:49,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:49,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:07:49,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:07:49,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:49,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 09:07:49,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:49,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:49,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876612036] [2021-06-13 09:07:49,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876612036] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:49,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763403063] [2021-06-13 09:07:49,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:49,883 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:07:49,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:49,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:49,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:49,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:49,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:49,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:49,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:49,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:49,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:49,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:49,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:49,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:49,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:49,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:49,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:49,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:49,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:49,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:49,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:07:49,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:49,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:49,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:49,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:49,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:49,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:49,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:49,955 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:49,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:49,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:49,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:49,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:49,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:49,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:49,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763403063] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:49,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:49,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-06-13 09:07:49,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387592563] [2021-06-13 09:07:49,964 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-13 09:07:49,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:49,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-13 09:07:49,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-06-13 09:07:49,964 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:07:49,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 630 transitions, 19639 flow. Second operand has 13 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:49,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:49,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:07:49,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:51,681 INFO L129 PetriNetUnfolder]: 2832/5292 cut-off events. [2021-06-13 09:07:51,681 INFO L130 PetriNetUnfolder]: For 247873/247914 co-relation queries the response was YES. [2021-06-13 09:07:51,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57510 conditions, 5292 events. 2832/5292 cut-off events. For 247873/247914 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 40516 event pairs, 659 based on Foata normal form. 18/5310 useless extension candidates. Maximal degree in co-relation 57167. Up to 3405 conditions per place. [2021-06-13 09:07:51,848 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 443 selfloop transitions, 213 changer transitions 0/663 dead transitions. [2021-06-13 09:07:51,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 663 transitions, 21554 flow [2021-06-13 09:07:51,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:51,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:51,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:07:51,850 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:07:51,850 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:07:51,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:07:51,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:51,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:07:51,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:51,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:51,851 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:51,851 INFO L185 Difference]: Start difference. First operand has 425 places, 630 transitions, 19639 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:07:51,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 663 transitions, 21554 flow [2021-06-13 09:07:53,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 663 transitions, 21472 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-06-13 09:07:53,079 INFO L241 Difference]: Finished difference. Result has 430 places, 632 transitions, 20057 flow [2021-06-13 09:07:53,080 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=19561, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20057, PETRI_PLACES=430, PETRI_TRANSITIONS=632} [2021-06-13 09:07:53,080 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 406 predicate places. [2021-06-13 09:07:53,080 INFO L482 AbstractCegarLoop]: Abstraction has has 430 places, 632 transitions, 20057 flow [2021-06-13 09:07:53,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:53,080 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:53,080 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:53,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable229 [2021-06-13 09:07:53,281 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:53,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:53,281 INFO L82 PathProgramCache]: Analyzing trace with hash 835114758, now seen corresponding path program 21 times [2021-06-13 09:07:53,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:53,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874927883] [2021-06-13 09:07:53,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:53,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:07:53,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:07:53,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:53,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:53,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:53,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 09:07:53,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 09:07:53,337 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:53,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874927883] [2021-06-13 09:07:53,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874927883] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:53,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479208610] [2021-06-13 09:07:53,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:53,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:07:53,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:53,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:53,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:53,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:53,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:53,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:53,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:53,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:53,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:53,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:53,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:53,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:53,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:53,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:53,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:53,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:53,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:53,436 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:53,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:53,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:53,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:07:53,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:07:53,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:53,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:53,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479208610] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:53,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:53,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:07:53,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877691447] [2021-06-13 09:07:53,446 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:07:53,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:53,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:07:53,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:07:53,446 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:07:53,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 632 transitions, 20057 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:53,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:53,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:07:53,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:55,621 INFO L129 PetriNetUnfolder]: 3271/6036 cut-off events. [2021-06-13 09:07:55,622 INFO L130 PetriNetUnfolder]: For 278386/278427 co-relation queries the response was YES. [2021-06-13 09:07:55,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64764 conditions, 6036 events. 3271/6036 cut-off events. For 278386/278427 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 46273 event pairs, 433 based on Foata normal form. 20/6056 useless extension candidates. Maximal degree in co-relation 64420. Up to 1487 conditions per place. [2021-06-13 09:07:55,715 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 491 selfloop transitions, 212 changer transitions 13/723 dead transitions. [2021-06-13 09:07:55,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 723 transitions, 23668 flow [2021-06-13 09:07:55,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 09:07:55,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 09:07:55,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 187 transitions. [2021-06-13 09:07:55,716 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-13 09:07:55,716 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 187 transitions. [2021-06-13 09:07:55,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 187 transitions. [2021-06-13 09:07:55,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:55,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 187 transitions. [2021-06-13 09:07:55,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 17.0) internal successors, (187), 11 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:55,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:55,716 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:55,716 INFO L185 Difference]: Start difference. First operand has 430 places, 632 transitions, 20057 flow. Second operand 11 states and 187 transitions. [2021-06-13 09:07:55,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 723 transitions, 23668 flow [2021-06-13 09:07:56,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 723 transitions, 23345 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-06-13 09:07:56,957 INFO L241 Difference]: Finished difference. Result has 441 places, 652 transitions, 21125 flow [2021-06-13 09:07:56,957 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=19738, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=21125, PETRI_PLACES=441, PETRI_TRANSITIONS=652} [2021-06-13 09:07:56,957 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 417 predicate places. [2021-06-13 09:07:56,957 INFO L482 AbstractCegarLoop]: Abstraction has has 441 places, 652 transitions, 21125 flow [2021-06-13 09:07:56,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:56,957 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:07:56,957 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:07:57,158 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230,67 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:57,158 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:07:57,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:07:57,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1146848186, now seen corresponding path program 22 times [2021-06-13 09:07:57,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:07:57,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382069797] [2021-06-13 09:07:57,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:07:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:07:57,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:07:57,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:57,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:07:57,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382069797] [2021-06-13 09:07:57,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382069797] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:57,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173189096] [2021-06-13 09:07:57,188 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:07:57,215 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:07:57,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:07:57,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:07:57,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:07:57,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:57,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:57,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:57,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:57,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:57,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:57,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:57,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:57,260 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:07:57,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:57,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:57,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:07:57,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:07:57,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:57,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,263 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:57,264 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:57,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,267 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:07:57,268 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:57,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:07:57,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:07:57,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:57,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:57,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:57,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:07:57,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:07:57,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:07:57,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:07:57,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:07:57,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:07:57,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:07:57,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173189096] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:07:57,293 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:07:57,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:07:57,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130140956] [2021-06-13 09:07:57,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:07:57,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:07:57,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:07:57,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:07:57,294 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:07:57,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 652 transitions, 21125 flow. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:57,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:07:57,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:07:57,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:07:59,231 INFO L129 PetriNetUnfolder]: 3199/5833 cut-off events. [2021-06-13 09:07:59,231 INFO L130 PetriNetUnfolder]: For 292363/292404 co-relation queries the response was YES. [2021-06-13 09:07:59,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64449 conditions, 5833 events. 3199/5833 cut-off events. For 292363/292404 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 44030 event pairs, 580 based on Foata normal form. 14/5847 useless extension candidates. Maximal degree in co-relation 64098. Up to 2647 conditions per place. [2021-06-13 09:07:59,418 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 506 selfloop transitions, 163 changer transitions 6/686 dead transitions. [2021-06-13 09:07:59,419 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 686 transitions, 23128 flow [2021-06-13 09:07:59,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:07:59,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:07:59,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:07:59,419 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:07:59,419 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:07:59,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:07:59,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:07:59,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:07:59,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:59,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:59,420 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:07:59,420 INFO L185 Difference]: Start difference. First operand has 441 places, 652 transitions, 21125 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:07:59,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 686 transitions, 23128 flow [2021-06-13 09:08:00,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 686 transitions, 22677 flow, removed 85 selfloop flow, removed 5 redundant places. [2021-06-13 09:08:00,905 INFO L241 Difference]: Finished difference. Result has 439 places, 644 transitions, 20785 flow [2021-06-13 09:08:00,905 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=20560, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=647, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20785, PETRI_PLACES=439, PETRI_TRANSITIONS=644} [2021-06-13 09:08:00,906 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 415 predicate places. [2021-06-13 09:08:00,906 INFO L482 AbstractCegarLoop]: Abstraction has has 439 places, 644 transitions, 20785 flow [2021-06-13 09:08:00,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:00,906 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:00,906 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:01,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:01,106 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:01,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:01,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1248573784, now seen corresponding path program 16 times [2021-06-13 09:08:01,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:01,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199655037] [2021-06-13 09:08:01,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:01,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:01,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:01,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:08:01,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:01,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:01,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199655037] [2021-06-13 09:08:01,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199655037] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:01,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396202144] [2021-06-13 09:08:01,145 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:01,172 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:08:01,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:08:01,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:08:01,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:08:01,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:01,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:01,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:01,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:01,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:01,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:01,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:01,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:01,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:01,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:01,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:01,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:01,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:01,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:01,221 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:08:01,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:01,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:01,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:08:01,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:01,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:01,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,225 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:08:01,226 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:01,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,227 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:08:01,228 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:01,228 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:08:01,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:01,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:01,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:01,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:01,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:01,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:01,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:01,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:08:01,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:01,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:01,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396202144] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:01,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:08:01,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:08:01,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80262408] [2021-06-13 09:08:01,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:08:01,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:01,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:08:01,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:08:01,254 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:01,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 644 transitions, 20785 flow. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:01,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:01,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:01,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:03,150 INFO L129 PetriNetUnfolder]: 3195/5843 cut-off events. [2021-06-13 09:08:03,150 INFO L130 PetriNetUnfolder]: For 273413/273454 co-relation queries the response was YES. [2021-06-13 09:08:03,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63013 conditions, 5843 events. 3195/5843 cut-off events. For 273413/273454 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 44535 event pairs, 792 based on Foata normal form. 12/5855 useless extension candidates. Maximal degree in co-relation 62665. Up to 3840 conditions per place. [2021-06-13 09:08:03,245 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 490 selfloop transitions, 166 changer transitions 1/668 dead transitions. [2021-06-13 09:08:03,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 668 transitions, 22595 flow [2021-06-13 09:08:03,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:03,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:03,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:08:03,246 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:08:03,246 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:08:03,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:08:03,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:03,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:08:03,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:03,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:03,246 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:03,246 INFO L185 Difference]: Start difference. First operand has 439 places, 644 transitions, 20785 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:08:03,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 668 transitions, 22595 flow [2021-06-13 09:08:04,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 668 transitions, 22386 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-06-13 09:08:04,614 INFO L241 Difference]: Finished difference. Result has 440 places, 647 transitions, 21047 flow [2021-06-13 09:08:04,614 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=20576, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21047, PETRI_PLACES=440, PETRI_TRANSITIONS=647} [2021-06-13 09:08:04,614 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 416 predicate places. [2021-06-13 09:08:04,614 INFO L482 AbstractCegarLoop]: Abstraction has has 440 places, 647 transitions, 21047 flow [2021-06-13 09:08:04,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:04,615 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:04,615 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:04,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable234 [2021-06-13 09:08:04,815 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:04,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:04,816 INFO L82 PathProgramCache]: Analyzing trace with hash 2019666574, now seen corresponding path program 23 times [2021-06-13 09:08:04,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:04,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675232594] [2021-06-13 09:08:04,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:04,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:04,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:04,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:08:04,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:08:04,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:04,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:04,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675232594] [2021-06-13 09:08:04,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675232594] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:04,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718471523] [2021-06-13 09:08:04,849 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:04,874 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:08:04,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:08:04,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:08:04,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:08:04,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:04,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:04,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:04,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:04,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:04,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:04,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:04,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:04,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:04,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:04,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:04,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:04,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:04,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:04,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:04,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:04,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:04,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:04,922 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:08:04,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:04,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:04,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:04,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:08:04,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:04,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:04,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:04,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718471523] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:04,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:08:04,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:08:04,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632808466] [2021-06-13 09:08:04,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:08:04,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:04,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:08:04,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:08:04,933 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:04,933 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 647 transitions, 21047 flow. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:04,933 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:04,933 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:04,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:06,831 INFO L129 PetriNetUnfolder]: 3249/5904 cut-off events. [2021-06-13 09:08:06,831 INFO L130 PetriNetUnfolder]: For 284499/284540 co-relation queries the response was YES. [2021-06-13 09:08:06,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64800 conditions, 5904 events. 3249/5904 cut-off events. For 284499/284540 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 44420 event pairs, 620 based on Foata normal form. 14/5918 useless extension candidates. Maximal degree in co-relation 64451. Up to 3079 conditions per place. [2021-06-13 09:08:06,928 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 534 selfloop transitions, 153 changer transitions 0/698 dead transitions. [2021-06-13 09:08:06,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 698 transitions, 23743 flow [2021-06-13 09:08:06,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:06,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:06,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2021-06-13 09:08:06,929 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8051948051948052 [2021-06-13 09:08:06,929 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 124 transitions. [2021-06-13 09:08:06,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 124 transitions. [2021-06-13 09:08:06,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:06,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 124 transitions. [2021-06-13 09:08:06,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:06,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:06,929 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:06,929 INFO L185 Difference]: Start difference. First operand has 440 places, 647 transitions, 21047 flow. Second operand 7 states and 124 transitions. [2021-06-13 09:08:06,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 698 transitions, 23743 flow [2021-06-13 09:08:08,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 698 transitions, 23516 flow, removed 15 selfloop flow, removed 3 redundant places. [2021-06-13 09:08:08,348 INFO L241 Difference]: Finished difference. Result has 446 places, 667 transitions, 22002 flow [2021-06-13 09:08:08,349 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=20820, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=647, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22002, PETRI_PLACES=446, PETRI_TRANSITIONS=667} [2021-06-13 09:08:08,349 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 422 predicate places. [2021-06-13 09:08:08,349 INFO L482 AbstractCegarLoop]: Abstraction has has 446 places, 667 transitions, 22002 flow [2021-06-13 09:08:08,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:08,349 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:08,349 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:08,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237,70 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:08,550 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:08,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:08,550 INFO L82 PathProgramCache]: Analyzing trace with hash 946831268, now seen corresponding path program 17 times [2021-06-13 09:08:08,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:08,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972120063] [2021-06-13 09:08:08,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:08,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:08:08,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:08:08,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:08,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 09:08:08,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:08:08,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 09:08:08,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 09:08:08,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:08,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972120063] [2021-06-13 09:08:08,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972120063] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:08,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231919034] [2021-06-13 09:08:08,609 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:08,654 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:08:08,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:08:08,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:08:08,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:08:08,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:08,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:08,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:08,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:08,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:08,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:08,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:08,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:08,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:08,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:08,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:08,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:08,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:08,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:08,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:08,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:08,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:08,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:08,730 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:08:08,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:08,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:08,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:08,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:08:08,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:08,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:08,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:08,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231919034] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:08,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:08:08,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:08:08,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637807700] [2021-06-13 09:08:08,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:08:08,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:08,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:08:08,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:08:08,737 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:08:08,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 667 transitions, 22002 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:08,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:08,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:08:08,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:10,704 INFO L129 PetriNetUnfolder]: 3239/5927 cut-off events. [2021-06-13 09:08:10,704 INFO L130 PetriNetUnfolder]: For 292953/292994 co-relation queries the response was YES. [2021-06-13 09:08:10,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65699 conditions, 5927 events. 3239/5927 cut-off events. For 292953/292994 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 45208 event pairs, 771 based on Foata normal form. 11/5938 useless extension candidates. Maximal degree in co-relation 65347. Up to 4028 conditions per place. [2021-06-13 09:08:10,914 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 510 selfloop transitions, 176 changer transitions 4/697 dead transitions. [2021-06-13 09:08:10,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 697 transitions, 23957 flow [2021-06-13 09:08:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 09:08:10,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 09:08:10,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 136 transitions. [2021-06-13 09:08:10,915 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-13 09:08:10,915 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 136 transitions. [2021-06-13 09:08:10,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 136 transitions. [2021-06-13 09:08:10,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:10,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 136 transitions. [2021-06-13 09:08:10,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:10,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:10,916 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:10,916 INFO L185 Difference]: Start difference. First operand has 446 places, 667 transitions, 22002 flow. Second operand 8 states and 136 transitions. [2021-06-13 09:08:10,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 697 transitions, 23957 flow [2021-06-13 09:08:12,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 697 transitions, 23776 flow, removed 16 selfloop flow, removed 2 redundant places. [2021-06-13 09:08:12,224 INFO L241 Difference]: Finished difference. Result has 453 places, 672 transitions, 22358 flow [2021-06-13 09:08:12,225 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=21823, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22358, PETRI_PLACES=453, PETRI_TRANSITIONS=672} [2021-06-13 09:08:12,225 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 429 predicate places. [2021-06-13 09:08:12,225 INFO L482 AbstractCegarLoop]: Abstraction has has 453 places, 672 transitions, 22358 flow [2021-06-13 09:08:12,225 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:12,225 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:12,225 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:12,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable238 [2021-06-13 09:08:12,426 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:12,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:12,426 INFO L82 PathProgramCache]: Analyzing trace with hash 553888706, now seen corresponding path program 24 times [2021-06-13 09:08:12,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:12,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033364719] [2021-06-13 09:08:12,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:12,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 09:08:12,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:08:12,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:12,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:12,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:08:12,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 09:08:12,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 09:08:12,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:12,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033364719] [2021-06-13 09:08:12,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033364719] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:12,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069213936] [2021-06-13 09:08:12,477 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:12,504 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:08:12,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:08:12,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:08:12,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:08:12,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:12,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:12,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:12,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:12,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:12,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:12,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:12,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:12,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:12,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:12,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:12,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:12,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:12,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:12,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:12,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:12,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:12,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:12,631 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:08:12,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:12,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:12,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:12,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:08:12,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:12,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:12,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069213936] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:12,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:08:12,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-13 09:08:12,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995670112] [2021-06-13 09:08:12,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:08:12,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:12,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:08:12,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:08:12,641 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:08:12,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 672 transitions, 22358 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:12,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:12,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:08:12,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:14,735 INFO L129 PetriNetUnfolder]: 3300/6026 cut-off events. [2021-06-13 09:08:14,736 INFO L130 PetriNetUnfolder]: For 306636/306677 co-relation queries the response was YES. [2021-06-13 09:08:14,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67539 conditions, 6026 events. 3300/6026 cut-off events. For 306636/306677 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 45728 event pairs, 651 based on Foata normal form. 12/6038 useless extension candidates. Maximal degree in co-relation 67207. Up to 3176 conditions per place. [2021-06-13 09:08:14,947 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 544 selfloop transitions, 171 changer transitions 11/733 dead transitions. [2021-06-13 09:08:14,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 733 transitions, 25460 flow [2021-06-13 09:08:14,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 09:08:14,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 09:08:14,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 151 transitions. [2021-06-13 09:08:14,948 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7626262626262627 [2021-06-13 09:08:14,948 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 151 transitions. [2021-06-13 09:08:14,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 151 transitions. [2021-06-13 09:08:14,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:14,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 151 transitions. [2021-06-13 09:08:14,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.77777777777778) internal successors, (151), 9 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:14,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:14,949 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 22.0) internal successors, (220), 10 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:14,949 INFO L185 Difference]: Start difference. First operand has 453 places, 672 transitions, 22358 flow. Second operand 9 states and 151 transitions. [2021-06-13 09:08:14,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 733 transitions, 25460 flow [2021-06-13 09:08:16,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 733 transitions, 25171 flow, removed 25 selfloop flow, removed 7 redundant places. [2021-06-13 09:08:16,487 INFO L241 Difference]: Finished difference. Result has 456 places, 691 transitions, 23414 flow [2021-06-13 09:08:16,488 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=22071, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=23414, PETRI_PLACES=456, PETRI_TRANSITIONS=691} [2021-06-13 09:08:16,488 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 432 predicate places. [2021-06-13 09:08:16,488 INFO L482 AbstractCegarLoop]: Abstraction has has 456 places, 691 transitions, 23414 flow [2021-06-13 09:08:16,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:16,488 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:16,488 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:16,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable239 [2021-06-13 09:08:16,689 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:16,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:16,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1718390812, now seen corresponding path program 18 times [2021-06-13 09:08:16,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:16,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776673097] [2021-06-13 09:08:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:16,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:16,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:16,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:16,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:16,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:16,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:16,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:16,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:16,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:16,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:16,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:16,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:16,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:16,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:16,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:16,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:16,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776673097] [2021-06-13 09:08:16,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776673097] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:08:16,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:08:16,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:08:16,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277823950] [2021-06-13 09:08:16,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:08:16,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:16,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:08:16,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:08:16,726 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:16,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 691 transitions, 23414 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:16,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:16,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:16,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:18,721 INFO L129 PetriNetUnfolder]: 3292/6067 cut-off events. [2021-06-13 09:08:18,721 INFO L130 PetriNetUnfolder]: For 320909/320918 co-relation queries the response was YES. [2021-06-13 09:08:18,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68534 conditions, 6067 events. 3292/6067 cut-off events. For 320909/320918 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 46812 event pairs, 755 based on Foata normal form. 11/6078 useless extension candidates. Maximal degree in co-relation 68176. Up to 4008 conditions per place. [2021-06-13 09:08:18,906 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 527 selfloop transitions, 170 changer transitions 4/712 dead transitions. [2021-06-13 09:08:18,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 712 transitions, 25153 flow [2021-06-13 09:08:18,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:18,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:18,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 119 transitions. [2021-06-13 09:08:18,906 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-13 09:08:18,907 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 119 transitions. [2021-06-13 09:08:18,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 119 transitions. [2021-06-13 09:08:18,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:18,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 119 transitions. [2021-06-13 09:08:18,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:18,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:18,907 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:18,907 INFO L185 Difference]: Start difference. First operand has 456 places, 691 transitions, 23414 flow. Second operand 7 states and 119 transitions. [2021-06-13 09:08:18,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 712 transitions, 25153 flow [2021-06-13 09:08:20,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 712 transitions, 24848 flow, removed 46 selfloop flow, removed 6 redundant places. [2021-06-13 09:08:20,490 INFO L241 Difference]: Finished difference. Result has 456 places, 689 transitions, 23359 flow [2021-06-13 09:08:20,491 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23013, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23359, PETRI_PLACES=456, PETRI_TRANSITIONS=689} [2021-06-13 09:08:20,491 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 432 predicate places. [2021-06-13 09:08:20,491 INFO L482 AbstractCegarLoop]: Abstraction has has 456 places, 689 transitions, 23359 flow [2021-06-13 09:08:20,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:20,491 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:20,491 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:20,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-06-13 09:08:20,492 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:20,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:20,492 INFO L82 PathProgramCache]: Analyzing trace with hash -54611006, now seen corresponding path program 25 times [2021-06-13 09:08:20,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:20,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759697959] [2021-06-13 09:08:20,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:20,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:20,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:20,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:20,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:20,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:20,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:20,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:20,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:20,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:20,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:20,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:20,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:20,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:20,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:20,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:20,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:20,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759697959] [2021-06-13 09:08:20,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759697959] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:08:20,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:08:20,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:08:20,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790127043] [2021-06-13 09:08:20,529 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:08:20,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:20,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:08:20,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:08:20,529 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:20,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 689 transitions, 23359 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:20,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:20,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:20,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:22,478 INFO L129 PetriNetUnfolder]: 3270/5945 cut-off events. [2021-06-13 09:08:22,478 INFO L130 PetriNetUnfolder]: For 318605/318646 co-relation queries the response was YES. [2021-06-13 09:08:22,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67550 conditions, 5945 events. 3270/5945 cut-off events. For 318605/318646 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 44823 event pairs, 676 based on Foata normal form. 14/5959 useless extension candidates. Maximal degree in co-relation 67193. Up to 3117 conditions per place. [2021-06-13 09:08:22,579 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 562 selfloop transitions, 139 changer transitions 4/716 dead transitions. [2021-06-13 09:08:22,579 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 716 transitions, 25279 flow [2021-06-13 09:08:22,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:22,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:22,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:08:22,580 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:08:22,580 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:08:22,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:08:22,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:22,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:08:22,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:22,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:22,580 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:22,580 INFO L185 Difference]: Start difference. First operand has 456 places, 689 transitions, 23359 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:08:22,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 716 transitions, 25279 flow [2021-06-13 09:08:24,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 716 transitions, 24964 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-13 09:08:24,101 INFO L241 Difference]: Finished difference. Result has 459 places, 686 transitions, 23236 flow [2021-06-13 09:08:24,102 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=22981, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23236, PETRI_PLACES=459, PETRI_TRANSITIONS=686} [2021-06-13 09:08:24,102 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 435 predicate places. [2021-06-13 09:08:24,102 INFO L482 AbstractCegarLoop]: Abstraction has has 459 places, 686 transitions, 23236 flow [2021-06-13 09:08:24,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:24,102 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:24,102 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:24,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-06-13 09:08:24,102 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:24,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:24,102 INFO L82 PathProgramCache]: Analyzing trace with hash 388393308, now seen corresponding path program 19 times [2021-06-13 09:08:24,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:24,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139417612] [2021-06-13 09:08:24,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:24,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:24,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:24,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:24,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:24,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:24,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:24,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:24,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:24,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:24,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:24,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:24,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:24,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:24,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:24,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:24,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:24,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139417612] [2021-06-13 09:08:24,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139417612] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:08:24,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:08:24,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:08:24,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122185764] [2021-06-13 09:08:24,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:08:24,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:24,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:08:24,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:08:24,156 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:24,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 686 transitions, 23236 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:24,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:24,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:24,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:26,153 INFO L129 PetriNetUnfolder]: 3245/5947 cut-off events. [2021-06-13 09:08:26,153 INFO L130 PetriNetUnfolder]: For 319270/319311 co-relation queries the response was YES. [2021-06-13 09:08:26,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67149 conditions, 5947 events. 3245/5947 cut-off events. For 319270/319311 co-relation queries the response was YES. Maximal size of possible extension queue 561. Compared 45485 event pairs, 746 based on Foata normal form. 18/5965 useless extension candidates. Maximal degree in co-relation 66791. Up to 3973 conditions per place. [2021-06-13 09:08:26,245 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 532 selfloop transitions, 159 changer transitions 4/706 dead transitions. [2021-06-13 09:08:26,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 706 transitions, 24981 flow [2021-06-13 09:08:26,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:26,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:26,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:08:26,246 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:08:26,246 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:08:26,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:08:26,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:26,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:08:26,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:26,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:26,247 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:26,247 INFO L185 Difference]: Start difference. First operand has 459 places, 686 transitions, 23236 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:08:26,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 706 transitions, 24981 flow [2021-06-13 09:08:27,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 706 transitions, 24799 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-13 09:08:27,741 INFO L241 Difference]: Finished difference. Result has 462 places, 684 transitions, 23318 flow [2021-06-13 09:08:27,741 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23055, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23318, PETRI_PLACES=462, PETRI_TRANSITIONS=684} [2021-06-13 09:08:27,742 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 438 predicate places. [2021-06-13 09:08:27,742 INFO L482 AbstractCegarLoop]: Abstraction has has 462 places, 684 transitions, 23318 flow [2021-06-13 09:08:27,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:27,742 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:27,742 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:27,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-06-13 09:08:27,742 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:27,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:27,742 INFO L82 PathProgramCache]: Analyzing trace with hash -838015946, now seen corresponding path program 26 times [2021-06-13 09:08:27,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:27,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252630844] [2021-06-13 09:08:27,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:27,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:27,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:27,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:27,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:27,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:27,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:27,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:27,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:27,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:27,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:27,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:27,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:27,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:27,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:27,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:27,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:27,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252630844] [2021-06-13 09:08:27,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252630844] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:08:27,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:08:27,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:08:27,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947471578] [2021-06-13 09:08:27,772 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:08:27,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:27,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:08:27,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:08:27,772 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:27,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 684 transitions, 23318 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:27,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:27,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:27,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:29,810 INFO L129 PetriNetUnfolder]: 3232/5849 cut-off events. [2021-06-13 09:08:29,810 INFO L130 PetriNetUnfolder]: For 324674/324715 co-relation queries the response was YES. [2021-06-13 09:08:29,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67195 conditions, 5849 events. 3232/5849 cut-off events. For 324674/324715 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 43784 event pairs, 677 based on Foata normal form. 10/5859 useless extension candidates. Maximal degree in co-relation 66835. Up to 3081 conditions per place. [2021-06-13 09:08:30,018 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 556 selfloop transitions, 135 changer transitions 7/709 dead transitions. [2021-06-13 09:08:30,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 709 transitions, 25176 flow [2021-06-13 09:08:30,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:30,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:30,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:08:30,018 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:08:30,019 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:08:30,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:08:30,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:30,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:08:30,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:30,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:30,019 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:30,019 INFO L185 Difference]: Start difference. First operand has 462 places, 684 transitions, 23318 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:08:30,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 709 transitions, 25176 flow [2021-06-13 09:08:31,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 709 transitions, 24886 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-06-13 09:08:31,515 INFO L241 Difference]: Finished difference. Result has 463 places, 679 transitions, 23136 flow [2021-06-13 09:08:31,516 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=22955, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23136, PETRI_PLACES=463, PETRI_TRANSITIONS=679} [2021-06-13 09:08:31,516 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 439 predicate places. [2021-06-13 09:08:31,516 INFO L482 AbstractCegarLoop]: Abstraction has has 463 places, 679 transitions, 23136 flow [2021-06-13 09:08:31,516 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:31,516 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:31,516 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:31,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-06-13 09:08:31,516 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:31,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:31,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1477464970, now seen corresponding path program 20 times [2021-06-13 09:08:31,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:31,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004286332] [2021-06-13 09:08:31,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:31,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:31,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:31,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:31,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:31,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:31,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:31,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:31,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:31,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:31,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:31,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:31,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:31,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:31,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:31,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:31,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:31,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004286332] [2021-06-13 09:08:31,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004286332] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:08:31,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:08:31,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:08:31,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908003666] [2021-06-13 09:08:31,554 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:08:31,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:31,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:08:31,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:08:31,554 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:31,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 679 transitions, 23136 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:31,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:31,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:31,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:33,495 INFO L129 PetriNetUnfolder]: 3220/5847 cut-off events. [2021-06-13 09:08:33,495 INFO L130 PetriNetUnfolder]: For 325340/325349 co-relation queries the response was YES. [2021-06-13 09:08:33,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66803 conditions, 5847 events. 3220/5847 cut-off events. For 325340/325349 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 44065 event pairs, 736 based on Foata normal form. 7/5854 useless extension candidates. Maximal degree in co-relation 66445. Up to 3957 conditions per place. [2021-06-13 09:08:33,600 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 515 selfloop transitions, 164 changer transitions 3/693 dead transitions. [2021-06-13 09:08:33,600 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 693 transitions, 24691 flow [2021-06-13 09:08:33,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:33,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:33,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 117 transitions. [2021-06-13 09:08:33,601 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7597402597402597 [2021-06-13 09:08:33,601 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 117 transitions. [2021-06-13 09:08:33,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 117 transitions. [2021-06-13 09:08:33,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:33,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 117 transitions. [2021-06-13 09:08:33,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:33,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:33,601 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:33,601 INFO L185 Difference]: Start difference. First operand has 463 places, 679 transitions, 23136 flow. Second operand 7 states and 117 transitions. [2021-06-13 09:08:33,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 693 transitions, 24691 flow [2021-06-13 09:08:35,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 693 transitions, 24329 flow, removed 20 selfloop flow, removed 11 redundant places. [2021-06-13 09:08:35,029 INFO L241 Difference]: Finished difference. Result has 454 places, 674 transitions, 22897 flow [2021-06-13 09:08:35,029 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=22709, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22897, PETRI_PLACES=454, PETRI_TRANSITIONS=674} [2021-06-13 09:08:35,029 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 430 predicate places. [2021-06-13 09:08:35,030 INFO L482 AbstractCegarLoop]: Abstraction has has 454 places, 674 transitions, 22897 flow [2021-06-13 09:08:35,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:35,030 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:35,030 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:35,030 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-06-13 09:08:35,030 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:35,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:35,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1605560134, now seen corresponding path program 27 times [2021-06-13 09:08:35,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:35,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000970972] [2021-06-13 09:08:35,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:35,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:35,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:35,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:35,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:35,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:35,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:35,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:35,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:35,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:35,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:08:35,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:35,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:35,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:35,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:35,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:35,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000970972] [2021-06-13 09:08:35,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000970972] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:08:35,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:08:35,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:08:35,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997129804] [2021-06-13 09:08:35,074 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:08:35,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:35,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:08:35,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:08:35,075 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:35,075 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 674 transitions, 22897 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:35,075 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:35,075 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:35,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:36,916 INFO L129 PetriNetUnfolder]: 3215/5780 cut-off events. [2021-06-13 09:08:36,916 INFO L130 PetriNetUnfolder]: For 316806/316847 co-relation queries the response was YES. [2021-06-13 09:08:36,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66057 conditions, 5780 events. 3215/5780 cut-off events. For 316806/316847 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 42762 event pairs, 606 based on Foata normal form. 8/5788 useless extension candidates. Maximal degree in co-relation 65704. Up to 3061 conditions per place. [2021-06-13 09:08:37,022 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 538 selfloop transitions, 146 changer transitions 2/697 dead transitions. [2021-06-13 09:08:37,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 697 transitions, 24676 flow [2021-06-13 09:08:37,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:37,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:37,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 119 transitions. [2021-06-13 09:08:37,023 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-13 09:08:37,023 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 119 transitions. [2021-06-13 09:08:37,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 119 transitions. [2021-06-13 09:08:37,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:37,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 119 transitions. [2021-06-13 09:08:37,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:37,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:37,023 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:37,023 INFO L185 Difference]: Start difference. First operand has 454 places, 674 transitions, 22897 flow. Second operand 7 states and 119 transitions. [2021-06-13 09:08:37,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 697 transitions, 24676 flow [2021-06-13 09:08:38,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 697 transitions, 24248 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-06-13 09:08:38,458 INFO L241 Difference]: Finished difference. Result has 452 places, 672 transitions, 22700 flow [2021-06-13 09:08:38,458 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=22435, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22700, PETRI_PLACES=452, PETRI_TRANSITIONS=672} [2021-06-13 09:08:38,459 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 428 predicate places. [2021-06-13 09:08:38,459 INFO L482 AbstractCegarLoop]: Abstraction has has 452 places, 672 transitions, 22700 flow [2021-06-13 09:08:38,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:38,459 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:38,459 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:38,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-06-13 09:08:38,459 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:38,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:38,459 INFO L82 PathProgramCache]: Analyzing trace with hash -710718206, now seen corresponding path program 21 times [2021-06-13 09:08:38,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:38,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685074259] [2021-06-13 09:08:38,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:38,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:38,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:38,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:38,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:38,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:38,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:38,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:38,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:38,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:38,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:38,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:38,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:38,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:38,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:38,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:38,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:38,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685074259] [2021-06-13 09:08:38,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685074259] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:08:38,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:08:38,500 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:08:38,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74823171] [2021-06-13 09:08:38,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:08:38,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:38,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:08:38,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:08:38,500 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:38,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 672 transitions, 22700 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:38,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:38,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:38,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:40,298 INFO L129 PetriNetUnfolder]: 3200/5787 cut-off events. [2021-06-13 09:08:40,299 INFO L130 PetriNetUnfolder]: For 311309/311350 co-relation queries the response was YES. [2021-06-13 09:08:40,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65546 conditions, 5787 events. 3200/5787 cut-off events. For 311309/311350 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 43448 event pairs, 785 based on Foata normal form. 14/5801 useless extension candidates. Maximal degree in co-relation 65193. Up to 3949 conditions per place. [2021-06-13 09:08:40,395 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 518 selfloop transitions, 154 changer transitions 2/685 dead transitions. [2021-06-13 09:08:40,396 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 685 transitions, 24203 flow [2021-06-13 09:08:40,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:40,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 118 transitions. [2021-06-13 09:08:40,396 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7662337662337663 [2021-06-13 09:08:40,396 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 118 transitions. [2021-06-13 09:08:40,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 118 transitions. [2021-06-13 09:08:40,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:40,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 118 transitions. [2021-06-13 09:08:40,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:40,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:40,397 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:40,397 INFO L185 Difference]: Start difference. First operand has 452 places, 672 transitions, 22700 flow. Second operand 7 states and 118 transitions. [2021-06-13 09:08:40,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 685 transitions, 24203 flow [2021-06-13 09:08:41,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 685 transitions, 23899 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-06-13 09:08:41,974 INFO L241 Difference]: Finished difference. Result has 447 places, 667 transitions, 22540 flow [2021-06-13 09:08:41,975 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=22303, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=669, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22540, PETRI_PLACES=447, PETRI_TRANSITIONS=667} [2021-06-13 09:08:41,975 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 423 predicate places. [2021-06-13 09:08:41,975 INFO L482 AbstractCegarLoop]: Abstraction has has 447 places, 667 transitions, 22540 flow [2021-06-13 09:08:41,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:41,975 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:41,975 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:41,975 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-06-13 09:08:41,975 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:41,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:41,975 INFO L82 PathProgramCache]: Analyzing trace with hash -458178614, now seen corresponding path program 22 times [2021-06-13 09:08:41,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:41,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405753796] [2021-06-13 09:08:41,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:41,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:41,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:41,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:41,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:41,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:41,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:42,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:08:42,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:42,027 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:42,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405753796] [2021-06-13 09:08:42,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405753796] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:42,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637272105] [2021-06-13 09:08:42,027 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:42,071 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:08:42,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:08:42,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:08:42,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:08:42,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:42,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:42,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:42,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:42,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:42,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:42,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:08:42,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:42,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:42,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:08:42,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:42,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:42,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:42,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:42,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:42,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:42,108 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-13 09:08:42,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:08:42,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:42,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:08:42,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:08:42,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:42,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,112 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:08:42,112 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:42,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:42,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:42,114 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:08:42,114 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:42,115 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:08:42,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:42,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:42,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:42,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:42,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:42,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:42,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:42,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:42,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:42,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:42,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:42,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:42,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:08:42,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:42,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:42,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:42,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637272105] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:42,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:08:42,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:08:42,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411974511] [2021-06-13 09:08:42,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:08:42,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:42,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:08:42,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:08:42,141 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:42,141 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 667 transitions, 22540 flow. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:42,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:42,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:42,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:44,067 INFO L129 PetriNetUnfolder]: 3195/5748 cut-off events. [2021-06-13 09:08:44,067 INFO L130 PetriNetUnfolder]: For 307710/307751 co-relation queries the response was YES. [2021-06-13 09:08:44,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64940 conditions, 5748 events. 3195/5748 cut-off events. For 307710/307751 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 42766 event pairs, 758 based on Foata normal form. 8/5756 useless extension candidates. Maximal degree in co-relation 64589. Up to 3949 conditions per place. [2021-06-13 09:08:44,162 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 471 selfloop transitions, 203 changer transitions 2/687 dead transitions. [2021-06-13 09:08:44,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 687 transitions, 24190 flow [2021-06-13 09:08:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:44,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:44,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:08:44,163 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:08:44,163 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:08:44,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:08:44,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:44,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:08:44,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:44,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:44,163 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:44,163 INFO L185 Difference]: Start difference. First operand has 447 places, 667 transitions, 22540 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:08:44,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 687 transitions, 24190 flow [2021-06-13 09:08:45,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 687 transitions, 23865 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-06-13 09:08:45,601 INFO L241 Difference]: Finished difference. Result has 446 places, 665 transitions, 22509 flow [2021-06-13 09:08:45,601 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=22163, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22509, PETRI_PLACES=446, PETRI_TRANSITIONS=665} [2021-06-13 09:08:45,601 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 422 predicate places. [2021-06-13 09:08:45,601 INFO L482 AbstractCegarLoop]: Abstraction has has 446 places, 665 transitions, 22509 flow [2021-06-13 09:08:45,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:45,601 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:45,601 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:45,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable247 [2021-06-13 09:08:45,802 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:45,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:45,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1538488244, now seen corresponding path program 23 times [2021-06-13 09:08:45,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:45,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351444711] [2021-06-13 09:08:45,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:45,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:08:45,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:45,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:45,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:08:45,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:08:45,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 09:08:45,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:45,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:45,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351444711] [2021-06-13 09:08:45,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351444711] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:45,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268360933] [2021-06-13 09:08:45,859 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:45,886 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:08:45,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:08:45,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:08:45,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:08:45,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:45,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:45,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:45,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:45,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:45,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:45,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:45,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:45,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:45,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:45,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,949 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:08:45,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:45,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:45,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:08:45,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:45,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:45,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,952 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:08:45,952 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:45,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:45,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:45,954 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:08:45,955 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:45,955 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:08:45,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:45,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:45,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:45,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:45,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:45,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:45,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:45,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:45,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:45,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:08:45,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:45,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:45,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268360933] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:45,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:08:45,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-06-13 09:08:45,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896933908] [2021-06-13 09:08:45,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-13 09:08:45,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:45,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-13 09:08:45,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-06-13 09:08:45,980 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:08:45,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 665 transitions, 22509 flow. Second operand has 13 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:45,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:45,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:08:45,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:47,889 INFO L129 PetriNetUnfolder]: 3186/5752 cut-off events. [2021-06-13 09:08:47,890 INFO L130 PetriNetUnfolder]: For 304720/304761 co-relation queries the response was YES. [2021-06-13 09:08:47,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64874 conditions, 5752 events. 3186/5752 cut-off events. For 304720/304761 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 42987 event pairs, 783 based on Foata normal form. 10/5762 useless extension candidates. Maximal degree in co-relation 64523. Up to 4040 conditions per place. [2021-06-13 09:08:47,982 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 518 selfloop transitions, 155 changer transitions 3/683 dead transitions. [2021-06-13 09:08:47,982 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 683 transitions, 24104 flow [2021-06-13 09:08:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:47,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 116 transitions. [2021-06-13 09:08:47,983 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7532467532467533 [2021-06-13 09:08:47,983 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 116 transitions. [2021-06-13 09:08:47,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 116 transitions. [2021-06-13 09:08:47,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:47,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 116 transitions. [2021-06-13 09:08:47,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:47,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:47,983 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:47,983 INFO L185 Difference]: Start difference. First operand has 446 places, 665 transitions, 22509 flow. Second operand 7 states and 116 transitions. [2021-06-13 09:08:47,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 683 transitions, 24104 flow [2021-06-13 09:08:49,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 683 transitions, 23678 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-06-13 09:08:49,376 INFO L241 Difference]: Finished difference. Result has 443 places, 663 transitions, 22318 flow [2021-06-13 09:08:49,376 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=21989, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=663, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22318, PETRI_PLACES=443, PETRI_TRANSITIONS=663} [2021-06-13 09:08:49,377 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 419 predicate places. [2021-06-13 09:08:49,377 INFO L482 AbstractCegarLoop]: Abstraction has has 443 places, 663 transitions, 22318 flow [2021-06-13 09:08:49,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:49,377 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:49,377 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:49,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:49,577 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:49,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:49,578 INFO L82 PathProgramCache]: Analyzing trace with hash 857978690, now seen corresponding path program 24 times [2021-06-13 09:08:49,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:49,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558458011] [2021-06-13 09:08:49,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:49,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:49,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:08:49,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:08:49,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:49,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:49,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558458011] [2021-06-13 09:08:49,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558458011] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:49,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33349026] [2021-06-13 09:08:49,616 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:49,644 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:08:49,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:08:49,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:08:49,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:08:49,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:49,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:49,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:49,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:49,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:49,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:49,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:08:49,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:49,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:49,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:08:49,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:49,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:49,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:49,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:49,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:49,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:08:49,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:49,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:49,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:49,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:49,688 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:08:49,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:49,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:49,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:08:49,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:49,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:49,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,691 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:08:49,691 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:49,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:49,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:49,692 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:08:49,693 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:49,699 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:08:49,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:49,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:49,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:49,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:49,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:49,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:49,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:49,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:49,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:49,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:49,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:08:49,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:49,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:49,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33349026] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:49,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:08:49,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:08:49,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376652402] [2021-06-13 09:08:49,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:08:49,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:49,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:08:49,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:08:49,723 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:49,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 663 transitions, 22318 flow. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:49,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:49,724 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:49,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:51,474 INFO L129 PetriNetUnfolder]: 3180/5721 cut-off events. [2021-06-13 09:08:51,474 INFO L130 PetriNetUnfolder]: For 304670/304711 co-relation queries the response was YES. [2021-06-13 09:08:51,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64519 conditions, 5721 events. 3180/5721 cut-off events. For 304670/304711 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 42566 event pairs, 757 based on Foata normal form. 8/5729 useless extension candidates. Maximal degree in co-relation 64169. Up to 3949 conditions per place. [2021-06-13 09:08:51,568 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 469 selfloop transitions, 200 changer transitions 2/682 dead transitions. [2021-06-13 09:08:51,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 682 transitions, 23928 flow [2021-06-13 09:08:51,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:51,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:51,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions. [2021-06-13 09:08:51,568 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2021-06-13 09:08:51,569 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 121 transitions. [2021-06-13 09:08:51,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 121 transitions. [2021-06-13 09:08:51,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:51,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 121 transitions. [2021-06-13 09:08:51,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:51,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:51,569 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:51,569 INFO L185 Difference]: Start difference. First operand has 443 places, 663 transitions, 22318 flow. Second operand 7 states and 121 transitions. [2021-06-13 09:08:51,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 682 transitions, 23928 flow [2021-06-13 09:08:52,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 682 transitions, 23610 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-06-13 09:08:52,961 INFO L241 Difference]: Finished difference. Result has 441 places, 661 transitions, 22333 flow [2021-06-13 09:08:52,961 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=21952, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22333, PETRI_PLACES=441, PETRI_TRANSITIONS=661} [2021-06-13 09:08:52,962 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 417 predicate places. [2021-06-13 09:08:52,962 INFO L482 AbstractCegarLoop]: Abstraction has has 441 places, 661 transitions, 22333 flow [2021-06-13 09:08:52,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:52,962 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:52,962 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:53,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253,75 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:53,165 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:53,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:53,165 INFO L82 PathProgramCache]: Analyzing trace with hash 2061179072, now seen corresponding path program 25 times [2021-06-13 09:08:53,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:53,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916530075] [2021-06-13 09:08:53,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:53,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:08:53,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:53,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:53,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916530075] [2021-06-13 09:08:53,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916530075] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:53,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298028142] [2021-06-13 09:08:53,199 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:53,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:08:53,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:08:53,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:53,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:08:53,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:53,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:08:53,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:53,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:53,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:53,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:53,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:53,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:53,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:53,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:53,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:53,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:53,335 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:08:53,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:53,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:53,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:08:53,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:08:53,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:53,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:53,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298028142] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:53,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:08:53,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-13 09:08:53,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398301734] [2021-06-13 09:08:53,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 09:08:53,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:53,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 09:08:53,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-13 09:08:53,345 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:53,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 661 transitions, 22333 flow. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:53,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:53,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:53,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:55,171 INFO L129 PetriNetUnfolder]: 3377/6039 cut-off events. [2021-06-13 09:08:55,171 INFO L130 PetriNetUnfolder]: For 313627/313668 co-relation queries the response was YES. [2021-06-13 09:08:55,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67743 conditions, 6039 events. 3377/6039 cut-off events. For 313627/313668 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 44852 event pairs, 559 based on Foata normal form. 12/6051 useless extension candidates. Maximal degree in co-relation 67394. Up to 2847 conditions per place. [2021-06-13 09:08:55,277 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 490 selfloop transitions, 222 changer transitions 5/728 dead transitions. [2021-06-13 09:08:55,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 728 transitions, 25293 flow [2021-06-13 09:08:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:55,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:55,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2021-06-13 09:08:55,278 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-06-13 09:08:55,278 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 126 transitions. [2021-06-13 09:08:55,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 126 transitions. [2021-06-13 09:08:55,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:55,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 126 transitions. [2021-06-13 09:08:55,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:55,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:55,278 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:55,278 INFO L185 Difference]: Start difference. First operand has 441 places, 661 transitions, 22333 flow. Second operand 7 states and 126 transitions. [2021-06-13 09:08:55,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 728 transitions, 25293 flow [2021-06-13 09:08:56,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 728 transitions, 24861 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-06-13 09:08:56,705 INFO L241 Difference]: Finished difference. Result has 441 places, 664 transitions, 22533 flow [2021-06-13 09:08:56,705 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=21929, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22533, PETRI_PLACES=441, PETRI_TRANSITIONS=664} [2021-06-13 09:08:56,706 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 417 predicate places. [2021-06-13 09:08:56,706 INFO L482 AbstractCegarLoop]: Abstraction has has 441 places, 664 transitions, 22533 flow [2021-06-13 09:08:56,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:56,706 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:08:56,706 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:08:56,906 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable256 [2021-06-13 09:08:56,906 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:08:56,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:08:56,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1443921308, now seen corresponding path program 26 times [2021-06-13 09:08:56,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:08:56,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461473589] [2021-06-13 09:08:56,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:08:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:08:56,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:56,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:56,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:08:56,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:56,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:56,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:08:56,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461473589] [2021-06-13 09:08:56,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461473589] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:56,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455085779] [2021-06-13 09:08:56,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:08:56,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:08:56,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:08:56,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:08:56,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:08:56,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:56,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:56,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:56,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:56,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:56,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:56,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:56,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:56,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:56,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:56,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:08:56,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:56,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:56,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:08:56,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:56,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:56,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:56,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:56,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:56,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:56,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:56,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:56,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:56,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:56,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:56,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:56,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:56,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:57,007 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:08:57,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:57,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:57,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:08:57,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:08:57,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:57,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,025 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:08:57,026 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:57,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:57,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:57,028 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:08:57,028 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:57,029 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:08:57,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:08:57,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:57,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:57,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:57,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:57,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:57,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:57,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:08:57,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:08:57,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:08:57,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:08:57,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:08:57,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:08:57,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:08:57,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455085779] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:08:57,050 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:08:57,050 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:08:57,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944771726] [2021-06-13 09:08:57,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:08:57,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:08:57,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:08:57,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:08:57,050 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:08:57,051 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 664 transitions, 22533 flow. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:57,051 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:08:57,051 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:08:57,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:08:58,858 INFO L129 PetriNetUnfolder]: 3351/6035 cut-off events. [2021-06-13 09:08:58,859 INFO L130 PetriNetUnfolder]: For 317010/317036 co-relation queries the response was YES. [2021-06-13 09:08:59,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67379 conditions, 6035 events. 3351/6035 cut-off events. For 317010/317036 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 45132 event pairs, 592 based on Foata normal form. 18/6053 useless extension candidates. Maximal degree in co-relation 67024. Up to 2847 conditions per place. [2021-06-13 09:08:59,097 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 491 selfloop transitions, 204 changer transitions 12/718 dead transitions. [2021-06-13 09:08:59,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 718 transitions, 24974 flow [2021-06-13 09:08:59,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:08:59,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:08:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2021-06-13 09:08:59,098 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8051948051948052 [2021-06-13 09:08:59,098 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 124 transitions. [2021-06-13 09:08:59,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 124 transitions. [2021-06-13 09:08:59,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:08:59,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 124 transitions. [2021-06-13 09:08:59,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:59,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:59,098 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:08:59,098 INFO L185 Difference]: Start difference. First operand has 441 places, 664 transitions, 22533 flow. Second operand 7 states and 124 transitions. [2021-06-13 09:08:59,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 718 transitions, 24974 flow [2021-06-13 09:09:00,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 718 transitions, 24528 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-06-13 09:09:00,450 INFO L241 Difference]: Finished difference. Result has 445 places, 653 transitions, 22169 flow [2021-06-13 09:09:00,450 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=21773, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22169, PETRI_PLACES=445, PETRI_TRANSITIONS=653} [2021-06-13 09:09:00,450 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 421 predicate places. [2021-06-13 09:09:00,451 INFO L482 AbstractCegarLoop]: Abstraction has has 445 places, 653 transitions, 22169 flow [2021-06-13 09:09:00,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:00,451 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:00,451 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:00,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable257 [2021-06-13 09:09:00,665 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:00,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:00,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1163041776, now seen corresponding path program 28 times [2021-06-13 09:09:00,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:00,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529642366] [2021-06-13 09:09:00,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:00,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:00,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:00,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:00,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:00,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:00,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:00,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:00,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529642366] [2021-06-13 09:09:00,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529642366] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:00,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29341997] [2021-06-13 09:09:00,699 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:00,732 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:09:00,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:09:00,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:09:00,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:09:00,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:00,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:00,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:00,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:00,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:00,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:00,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:00,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:00,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:00,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:00,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:09:00,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:00,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:00,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:09:00,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:00,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:00,827 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-13 09:09:00,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:09:00,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:00,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:09:00,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:09:00,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:00,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,830 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:09:00,837 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:00,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:00,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:00,838 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:09:00,839 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:00,839 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:09:00,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:00,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:00,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:00,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:00,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:00,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:00,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:00,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:00,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:00,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:00,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:00,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:00,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:00,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:00,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:00,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:00,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:00,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:00,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:09:00,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:00,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:00,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:00,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29341997] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:00,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:09:00,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:09:00,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598925450] [2021-06-13 09:09:00,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:09:00,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:00,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:09:00,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:09:00,861 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:00,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 653 transitions, 22169 flow. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:00,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:00,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:00,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:02,775 INFO L129 PetriNetUnfolder]: 3455/6285 cut-off events. [2021-06-13 09:09:02,775 INFO L130 PetriNetUnfolder]: For 326683/326709 co-relation queries the response was YES. [2021-06-13 09:09:02,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69786 conditions, 6285 events. 3455/6285 cut-off events. For 326683/326709 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 48128 event pairs, 868 based on Foata normal form. 4/6289 useless extension candidates. Maximal degree in co-relation 69429. Up to 3450 conditions per place. [2021-06-13 09:09:02,883 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 433 selfloop transitions, 252 changer transitions 5/701 dead transitions. [2021-06-13 09:09:02,883 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 701 transitions, 24692 flow [2021-06-13 09:09:02,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:02,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:02,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2021-06-13 09:09:02,886 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7987012987012987 [2021-06-13 09:09:02,886 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 123 transitions. [2021-06-13 09:09:02,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 123 transitions. [2021-06-13 09:09:02,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:02,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 123 transitions. [2021-06-13 09:09:02,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:02,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:02,887 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:02,887 INFO L185 Difference]: Start difference. First operand has 445 places, 653 transitions, 22169 flow. Second operand 7 states and 123 transitions. [2021-06-13 09:09:02,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 701 transitions, 24692 flow [2021-06-13 09:09:04,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 701 transitions, 24266 flow, removed 18 selfloop flow, removed 4 redundant places. [2021-06-13 09:09:04,471 INFO L241 Difference]: Finished difference. Result has 449 places, 660 transitions, 22478 flow [2021-06-13 09:09:04,472 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=21751, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22478, PETRI_PLACES=449, PETRI_TRANSITIONS=660} [2021-06-13 09:09:04,472 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 425 predicate places. [2021-06-13 09:09:04,472 INFO L482 AbstractCegarLoop]: Abstraction has has 449 places, 660 transitions, 22478 flow [2021-06-13 09:09:04,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:04,472 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:04,472 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:04,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable260 [2021-06-13 09:09:04,693 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:04,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:04,693 INFO L82 PathProgramCache]: Analyzing trace with hash -869273620, now seen corresponding path program 27 times [2021-06-13 09:09:04,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:04,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7466073] [2021-06-13 09:09:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:04,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:04,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:04,721 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:04,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7466073] [2021-06-13 09:09:04,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7466073] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:04,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527221428] [2021-06-13 09:09:04,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:04,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:09:04,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:09:04,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:09:04,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:09:04,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:04,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:04,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:09:04,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:04,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:04,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:09:04,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:04,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:04,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:04,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:04,773 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-13 09:09:04,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:09:04,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:04,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:09:04,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:09:04,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:04,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,776 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:09:04,776 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:04,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:04,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:04,778 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:09:04,778 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:04,778 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:09:04,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:04,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:04,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:04,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:04,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:04,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:04,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:04,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:04,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:04,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:04,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:04,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:04,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:09:04,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:04,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:04,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527221428] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:04,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:09:04,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:09:04,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649766504] [2021-06-13 09:09:04,800 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:09:04,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:04,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:09:04,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:09:04,801 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:04,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 660 transitions, 22478 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:04,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:04,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:04,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:06,813 INFO L129 PetriNetUnfolder]: 3559/6482 cut-off events. [2021-06-13 09:09:06,813 INFO L130 PetriNetUnfolder]: For 336311/336337 co-relation queries the response was YES. [2021-06-13 09:09:06,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72078 conditions, 6482 events. 3559/6482 cut-off events. For 336311/336337 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 49692 event pairs, 612 based on Foata normal form. 4/6486 useless extension candidates. Maximal degree in co-relation 71719. Up to 2981 conditions per place. [2021-06-13 09:09:07,043 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 451 selfloop transitions, 258 changer transitions 10/730 dead transitions. [2021-06-13 09:09:07,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 730 transitions, 25605 flow [2021-06-13 09:09:07,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:07,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:07,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:09:07,044 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:09:07,044 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:09:07,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:09:07,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:07,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:09:07,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:07,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:07,044 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:07,044 INFO L185 Difference]: Start difference. First operand has 449 places, 660 transitions, 22478 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:09:07,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 730 transitions, 25605 flow [2021-06-13 09:09:08,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 730 transitions, 25295 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-06-13 09:09:08,555 INFO L241 Difference]: Finished difference. Result has 453 places, 673 transitions, 23396 flow [2021-06-13 09:09:08,556 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=22168, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23396, PETRI_PLACES=453, PETRI_TRANSITIONS=673} [2021-06-13 09:09:08,556 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 429 predicate places. [2021-06-13 09:09:08,556 INFO L482 AbstractCegarLoop]: Abstraction has has 453 places, 673 transitions, 23396 flow [2021-06-13 09:09:08,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:08,556 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:08,556 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:08,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263,79 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:08,759 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:08,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:08,759 INFO L82 PathProgramCache]: Analyzing trace with hash -413148616, now seen corresponding path program 29 times [2021-06-13 09:09:08,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:08,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909995397] [2021-06-13 09:09:08,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:08,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:08,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:08,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:08,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:08,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:08,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:08,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:08,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:08,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:08,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:08,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:08,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:08,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:08,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:08,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:08,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909995397] [2021-06-13 09:09:08,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909995397] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:09:08,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:09:08,824 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:09:08,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225019478] [2021-06-13 09:09:08,824 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:09:08,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:08,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:09:08,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:09:08,825 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:08,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 673 transitions, 23396 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:08,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:08,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:08,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:10,996 INFO L129 PetriNetUnfolder]: 3572/6591 cut-off events. [2021-06-13 09:09:10,996 INFO L130 PetriNetUnfolder]: For 361851/361877 co-relation queries the response was YES. [2021-06-13 09:09:11,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73130 conditions, 6591 events. 3572/6591 cut-off events. For 361851/361877 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 51733 event pairs, 902 based on Foata normal form. 8/6599 useless extension candidates. Maximal degree in co-relation 72769. Up to 3616 conditions per place. [2021-06-13 09:09:11,113 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 453 selfloop transitions, 237 changer transitions 12/713 dead transitions. [2021-06-13 09:09:11,113 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 713 transitions, 25663 flow [2021-06-13 09:09:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:11,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:09:11,113 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:09:11,113 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:09:11,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:09:11,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:11,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:09:11,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:11,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:11,114 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:11,114 INFO L185 Difference]: Start difference. First operand has 453 places, 673 transitions, 23396 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:09:11,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 713 transitions, 25663 flow [2021-06-13 09:09:12,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 713 transitions, 25377 flow, removed 29 selfloop flow, removed 4 redundant places. [2021-06-13 09:09:12,914 INFO L241 Difference]: Finished difference. Result has 457 places, 677 transitions, 23715 flow [2021-06-13 09:09:12,915 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23005, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23715, PETRI_PLACES=457, PETRI_TRANSITIONS=677} [2021-06-13 09:09:12,915 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 433 predicate places. [2021-06-13 09:09:12,915 INFO L482 AbstractCegarLoop]: Abstraction has has 457 places, 677 transitions, 23715 flow [2021-06-13 09:09:12,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:12,915 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:12,915 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:12,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-06-13 09:09:12,915 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:12,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:12,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1200652942, now seen corresponding path program 28 times [2021-06-13 09:09:12,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:12,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205693912] [2021-06-13 09:09:12,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:12,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:12,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:12,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:12,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:12,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:09:12,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:12,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:12,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:12,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205693912] [2021-06-13 09:09:12,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205693912] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:12,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655028033] [2021-06-13 09:09:12,946 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:12,971 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:09:12,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:09:12,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:09:12,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:09:12,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:12,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:12,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:12,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:12,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:12,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:12,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:12,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:12,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:12,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:12,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:12,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:12,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:12,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:09:12,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:12,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:09:12,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:12,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:12,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:12,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:12,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:12,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:12,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:12,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:12,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:12,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:13,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:13,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:13,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:13,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:13,017 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:09:13,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:09:13,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:13,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:13,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:09:13,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:13,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:13,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:13,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:13,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:13,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:13,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:13,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:13,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:13,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655028033] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:13,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:09:13,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:09:13,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415276813] [2021-06-13 09:09:13,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:09:13,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:13,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:09:13,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:09:13,025 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:13,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 677 transitions, 23715 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:13,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:13,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:13,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:15,172 INFO L129 PetriNetUnfolder]: 3558/6492 cut-off events. [2021-06-13 09:09:15,172 INFO L130 PetriNetUnfolder]: For 366563/366589 co-relation queries the response was YES. [2021-06-13 09:09:15,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73686 conditions, 6492 events. 3558/6492 cut-off events. For 366563/366589 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 49846 event pairs, 622 based on Foata normal form. 4/6496 useless extension candidates. Maximal degree in co-relation 73316. Up to 2967 conditions per place. [2021-06-13 09:09:15,288 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 504 selfloop transitions, 212 changer transitions 5/732 dead transitions. [2021-06-13 09:09:15,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 732 transitions, 26373 flow [2021-06-13 09:09:15,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:15,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:15,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2021-06-13 09:09:15,289 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8116883116883117 [2021-06-13 09:09:15,289 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 125 transitions. [2021-06-13 09:09:15,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 125 transitions. [2021-06-13 09:09:15,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:15,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 125 transitions. [2021-06-13 09:09:15,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:15,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:15,290 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:15,290 INFO L185 Difference]: Start difference. First operand has 457 places, 677 transitions, 23715 flow. Second operand 7 states and 125 transitions. [2021-06-13 09:09:15,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 732 transitions, 26373 flow [2021-06-13 09:09:17,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 732 transitions, 25885 flow, removed 32 selfloop flow, removed 5 redundant places. [2021-06-13 09:09:17,029 INFO L241 Difference]: Finished difference. Result has 457 places, 677 transitions, 23681 flow [2021-06-13 09:09:17,029 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23207, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23681, PETRI_PLACES=457, PETRI_TRANSITIONS=677} [2021-06-13 09:09:17,029 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 433 predicate places. [2021-06-13 09:09:17,029 INFO L482 AbstractCegarLoop]: Abstraction has has 457 places, 677 transitions, 23681 flow [2021-06-13 09:09:17,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:17,029 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:17,029 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:17,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:17,230 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:17,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:17,230 INFO L82 PathProgramCache]: Analyzing trace with hash -900281918, now seen corresponding path program 29 times [2021-06-13 09:09:17,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:17,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973914477] [2021-06-13 09:09:17,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:17,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:17,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:09:17,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:09:17,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:09:17,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:09:17,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 09:09:17,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:17,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:17,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973914477] [2021-06-13 09:09:17,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973914477] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:17,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180746657] [2021-06-13 09:09:17,284 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:17,310 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:09:17,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:09:17,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:09:17,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:09:17,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:17,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:17,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:17,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:17,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:17,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:17,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:17,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:17,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,356 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:09:17,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:09:17,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:17,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:09:17,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:09:17,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:17,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,358 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:09:17,359 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:17,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,360 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:09:17,361 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:17,361 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:09:17,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:17,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:17,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:17,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:17,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:17,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:17,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:09:17,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:17,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:17,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:17,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180746657] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:17,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:09:17,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-06-13 09:09:17,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285959564] [2021-06-13 09:09:17,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 09:09:17,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:17,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 09:09:17,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-06-13 09:09:17,382 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:09:17,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 677 transitions, 23681 flow. Second operand has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 12 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:17,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:17,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:09:17,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:19,541 INFO L129 PetriNetUnfolder]: 3534/6497 cut-off events. [2021-06-13 09:09:19,541 INFO L130 PetriNetUnfolder]: For 358303/358329 co-relation queries the response was YES. [2021-06-13 09:09:19,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72969 conditions, 6497 events. 3534/6497 cut-off events. For 358303/358329 co-relation queries the response was YES. Maximal size of possible extension queue 586. Compared 50354 event pairs, 751 based on Foata normal form. 24/6521 useless extension candidates. Maximal degree in co-relation 72603. Up to 3429 conditions per place. [2021-06-13 09:09:19,787 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 594 selfloop transitions, 121 changer transitions 8/730 dead transitions. [2021-06-13 09:09:19,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 730 transitions, 26254 flow [2021-06-13 09:09:19,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:19,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:19,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:09:19,788 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:09:19,788 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:09:19,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:09:19,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:19,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:09:19,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:19,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:19,790 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:19,790 INFO L185 Difference]: Start difference. First operand has 457 places, 677 transitions, 23681 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:09:19,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 730 transitions, 26254 flow [2021-06-13 09:09:21,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 730 transitions, 25822 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-06-13 09:09:21,566 INFO L241 Difference]: Finished difference. Result has 461 places, 676 transitions, 23660 flow [2021-06-13 09:09:21,566 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23201, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=554, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23660, PETRI_PLACES=461, PETRI_TRANSITIONS=676} [2021-06-13 09:09:21,566 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 437 predicate places. [2021-06-13 09:09:21,566 INFO L482 AbstractCegarLoop]: Abstraction has has 461 places, 676 transitions, 23660 flow [2021-06-13 09:09:21,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 12 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:21,566 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:21,567 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:21,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable268 [2021-06-13 09:09:21,780 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:21,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:21,780 INFO L82 PathProgramCache]: Analyzing trace with hash 939306084, now seen corresponding path program 30 times [2021-06-13 09:09:21,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:21,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812604895] [2021-06-13 09:09:21,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:21,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:21,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:21,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:09:21,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:21,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:21,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812604895] [2021-06-13 09:09:21,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812604895] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:21,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930920162] [2021-06-13 09:09:21,819 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:21,854 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:09:21,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:09:21,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:09:21,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:09:21,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:21,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:21,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:09:21,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:21,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:21,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:09:21,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:21,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:21,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:21,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:21,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:21,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:21,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:21,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:21,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:21,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:21,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:21,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:21,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:21,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:21,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:21,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:21,912 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:09:21,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:09:21,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:21,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:21,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:09:21,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:21,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:21,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:21,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930920162] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:21,918 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:09:21,918 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:09:21,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502705716] [2021-06-13 09:09:21,919 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:09:21,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:21,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:09:21,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:09:21,919 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:21,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 676 transitions, 23660 flow. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:21,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:21,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:21,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:23,933 INFO L129 PetriNetUnfolder]: 3511/6399 cut-off events. [2021-06-13 09:09:23,933 INFO L130 PetriNetUnfolder]: For 351378/351404 co-relation queries the response was YES. [2021-06-13 09:09:24,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72348 conditions, 6399 events. 3511/6399 cut-off events. For 351378/351404 co-relation queries the response was YES. Maximal size of possible extension queue 576. Compared 48875 event pairs, 621 based on Foata normal form. 4/6403 useless extension candidates. Maximal degree in co-relation 71983. Up to 2965 conditions per place. [2021-06-13 09:09:24,045 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 454 selfloop transitions, 253 changer transitions 1/719 dead transitions. [2021-06-13 09:09:24,045 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 719 transitions, 26021 flow [2021-06-13 09:09:24,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:24,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:24,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2021-06-13 09:09:24,046 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8116883116883117 [2021-06-13 09:09:24,046 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 125 transitions. [2021-06-13 09:09:24,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 125 transitions. [2021-06-13 09:09:24,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:24,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 125 transitions. [2021-06-13 09:09:24,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:24,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:24,047 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:24,047 INFO L185 Difference]: Start difference. First operand has 461 places, 676 transitions, 23660 flow. Second operand 7 states and 125 transitions. [2021-06-13 09:09:24,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 719 transitions, 26021 flow [2021-06-13 09:09:25,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 719 transitions, 25741 flow, removed 50 selfloop flow, removed 6 redundant places. [2021-06-13 09:09:25,778 INFO L241 Difference]: Finished difference. Result has 462 places, 680 transitions, 24105 flow [2021-06-13 09:09:25,778 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23379, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=248, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24105, PETRI_PLACES=462, PETRI_TRANSITIONS=680} [2021-06-13 09:09:25,778 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 438 predicate places. [2021-06-13 09:09:25,778 INFO L482 AbstractCegarLoop]: Abstraction has has 462 places, 680 transitions, 24105 flow [2021-06-13 09:09:25,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:25,778 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:25,778 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:25,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:25,979 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:25,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:25,979 INFO L82 PathProgramCache]: Analyzing trace with hash -553686556, now seen corresponding path program 31 times [2021-06-13 09:09:25,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:25,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014225100] [2021-06-13 09:09:25,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:25,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:25,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:25,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:25,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:26,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:26,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:09:26,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:26,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:26,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014225100] [2021-06-13 09:09:26,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014225100] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:26,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179485017] [2021-06-13 09:09:26,034 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:26,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:09:26,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:09:26,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:26,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:26,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:26,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:26,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:26,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:26,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:26,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:26,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:26,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:26,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:26,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:26,197 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:09:26,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:09:26,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:26,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:26,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:09:26,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:26,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:26,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:26,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179485017] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:26,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:09:26,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:09:26,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495702429] [2021-06-13 09:09:26,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:09:26,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:26,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:09:26,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:09:26,210 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:26,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 680 transitions, 24105 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:26,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:26,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:26,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:28,194 INFO L129 PetriNetUnfolder]: 3539/6429 cut-off events. [2021-06-13 09:09:28,194 INFO L130 PetriNetUnfolder]: For 368459/368485 co-relation queries the response was YES. [2021-06-13 09:09:28,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73198 conditions, 6429 events. 3539/6429 cut-off events. For 368459/368485 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 49114 event pairs, 727 based on Foata normal form. 16/6445 useless extension candidates. Maximal degree in co-relation 72832. Up to 3372 conditions per place. [2021-06-13 09:09:28,321 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 574 selfloop transitions, 145 changer transitions 1/731 dead transitions. [2021-06-13 09:09:28,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 731 transitions, 26629 flow [2021-06-13 09:09:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:28,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:28,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2021-06-13 09:09:28,321 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8051948051948052 [2021-06-13 09:09:28,321 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 124 transitions. [2021-06-13 09:09:28,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 124 transitions. [2021-06-13 09:09:28,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:28,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 124 transitions. [2021-06-13 09:09:28,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:28,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:28,322 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:28,322 INFO L185 Difference]: Start difference. First operand has 462 places, 680 transitions, 24105 flow. Second operand 7 states and 124 transitions. [2021-06-13 09:09:28,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 731 transitions, 26629 flow [2021-06-13 09:09:30,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 731 transitions, 26411 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-13 09:09:30,318 INFO L241 Difference]: Finished difference. Result has 468 places, 683 transitions, 24353 flow [2021-06-13 09:09:30,319 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23854, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24353, PETRI_PLACES=468, PETRI_TRANSITIONS=683} [2021-06-13 09:09:30,319 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 444 predicate places. [2021-06-13 09:09:30,319 INFO L482 AbstractCegarLoop]: Abstraction has has 468 places, 683 transitions, 24353 flow [2021-06-13 09:09:30,319 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:30,319 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:30,319 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:30,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272,83 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:30,542 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:30,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:30,543 INFO L82 PathProgramCache]: Analyzing trace with hash -613418530, now seen corresponding path program 30 times [2021-06-13 09:09:30,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:30,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106793777] [2021-06-13 09:09:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:30,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:30,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:30,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:30,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:30,572 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:30,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106793777] [2021-06-13 09:09:30,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106793777] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:30,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437916814] [2021-06-13 09:09:30,572 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:30,599 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:09:30,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:09:30,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:09:30,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:09:30,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:30,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:30,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:30,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:30,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:30,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:30,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:30,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:30,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:30,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:30,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:09:30,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:30,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:30,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:09:30,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:30,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:30,627 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-13 09:09:30,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:09:30,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:30,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:09:30,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:09:30,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:30,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,630 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:09:30,630 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:30,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:30,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:30,632 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:09:30,632 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:30,633 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:09:30,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:30,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:30,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:30,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:30,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:30,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:30,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:30,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:30,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:30,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:30,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:30,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:30,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:09:30,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:30,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:30,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:30,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437916814] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:30,660 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:09:30,660 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:09:30,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757588560] [2021-06-13 09:09:30,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:09:30,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:30,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:09:30,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:09:30,661 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:30,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 683 transitions, 24353 flow. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:30,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:30,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:30,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:32,806 INFO L129 PetriNetUnfolder]: 3534/6473 cut-off events. [2021-06-13 09:09:32,806 INFO L130 PetriNetUnfolder]: For 364718/364744 co-relation queries the response was YES. [2021-06-13 09:09:32,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73905 conditions, 6473 events. 3534/6473 cut-off events. For 364718/364744 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 50272 event pairs, 899 based on Foata normal form. 4/6477 useless extension candidates. Maximal degree in co-relation 73534. Up to 3596 conditions per place. [2021-06-13 09:09:32,922 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 447 selfloop transitions, 242 changer transitions 4/704 dead transitions. [2021-06-13 09:09:32,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 704 transitions, 26119 flow [2021-06-13 09:09:32,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:32,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:32,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:09:32,923 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:09:32,923 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:09:32,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:09:32,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:32,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:09:32,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:32,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:32,924 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:32,924 INFO L185 Difference]: Start difference. First operand has 468 places, 683 transitions, 24353 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:09:32,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 704 transitions, 26119 flow [2021-06-13 09:09:34,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 704 transitions, 25893 flow, removed 16 selfloop flow, removed 5 redundant places. [2021-06-13 09:09:34,559 INFO L241 Difference]: Finished difference. Result has 469 places, 679 transitions, 24408 flow [2021-06-13 09:09:34,560 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=24015, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=681, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24408, PETRI_PLACES=469, PETRI_TRANSITIONS=679} [2021-06-13 09:09:34,560 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 445 predicate places. [2021-06-13 09:09:34,560 INFO L482 AbstractCegarLoop]: Abstraction has has 469 places, 679 transitions, 24408 flow [2021-06-13 09:09:34,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:34,560 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:34,560 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:34,772 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:34,773 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:34,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:34,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1986869896, now seen corresponding path program 32 times [2021-06-13 09:09:34,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:34,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328863439] [2021-06-13 09:09:34,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:34,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:34,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:34,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:34,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:34,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:34,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:34,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:34,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:34,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:34,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:34,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:34,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:34,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:34,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:34,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:34,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:34,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328863439] [2021-06-13 09:09:34,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328863439] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:09:34,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:09:34,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:09:34,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470529224] [2021-06-13 09:09:34,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:09:34,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:34,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:09:34,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:09:34,803 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:34,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 679 transitions, 24408 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:34,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:34,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:34,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:36,815 INFO L129 PetriNetUnfolder]: 3508/6375 cut-off events. [2021-06-13 09:09:36,815 INFO L130 PetriNetUnfolder]: For 367915/367941 co-relation queries the response was YES. [2021-06-13 09:09:36,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73737 conditions, 6375 events. 3508/6375 cut-off events. For 367915/367941 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 48644 event pairs, 726 based on Foata normal form. 8/6383 useless extension candidates. Maximal degree in co-relation 73361. Up to 3372 conditions per place. [2021-06-13 09:09:36,929 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 569 selfloop transitions, 139 changer transitions 2/721 dead transitions. [2021-06-13 09:09:36,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 721 transitions, 26593 flow [2021-06-13 09:09:36,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:36,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:36,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:09:36,930 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:09:36,930 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:09:36,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:09:36,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:36,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:09:36,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:36,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:36,931 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:36,931 INFO L185 Difference]: Start difference. First operand has 469 places, 679 transitions, 24408 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:09:36,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 721 transitions, 26593 flow [2021-06-13 09:09:38,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 721 transitions, 26096 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-06-13 09:09:38,661 INFO L241 Difference]: Finished difference. Result has 469 places, 675 transitions, 24076 flow [2021-06-13 09:09:38,662 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23848, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24076, PETRI_PLACES=469, PETRI_TRANSITIONS=675} [2021-06-13 09:09:38,662 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 445 predicate places. [2021-06-13 09:09:38,662 INFO L482 AbstractCegarLoop]: Abstraction has has 469 places, 675 transitions, 24076 flow [2021-06-13 09:09:38,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:38,662 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:38,662 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:38,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-06-13 09:09:38,662 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:38,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:38,663 INFO L82 PathProgramCache]: Analyzing trace with hash 296292690, now seen corresponding path program 31 times [2021-06-13 09:09:38,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:38,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374503107] [2021-06-13 09:09:38,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:38,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:38,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:38,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:38,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:38,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:38,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:38,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:38,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:38,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:38,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:38,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:38,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:38,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:38,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:38,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:38,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:38,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374503107] [2021-06-13 09:09:38,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374503107] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:09:38,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:09:38,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:09:38,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685931757] [2021-06-13 09:09:38,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:09:38,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:38,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:09:38,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:09:38,763 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:38,763 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 675 transitions, 24076 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:38,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:38,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:38,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:40,913 INFO L129 PetriNetUnfolder]: 3464/6303 cut-off events. [2021-06-13 09:09:40,913 INFO L130 PetriNetUnfolder]: For 358349/358375 co-relation queries the response was YES. [2021-06-13 09:09:40,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72528 conditions, 6303 events. 3464/6303 cut-off events. For 358349/358375 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 48284 event pairs, 906 based on Foata normal form. 20/6323 useless extension candidates. Maximal degree in co-relation 72157. Up to 3556 conditions per place. [2021-06-13 09:09:41,031 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 448 selfloop transitions, 237 changer transitions 4/700 dead transitions. [2021-06-13 09:09:41,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 700 transitions, 25863 flow [2021-06-13 09:09:41,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:41,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:41,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2021-06-13 09:09:41,031 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8051948051948052 [2021-06-13 09:09:41,031 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 124 transitions. [2021-06-13 09:09:41,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 124 transitions. [2021-06-13 09:09:41,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:41,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 124 transitions. [2021-06-13 09:09:41,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:41,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:41,032 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:41,032 INFO L185 Difference]: Start difference. First operand has 469 places, 675 transitions, 24076 flow. Second operand 7 states and 124 transitions. [2021-06-13 09:09:41,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 700 transitions, 25863 flow [2021-06-13 09:09:42,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 700 transitions, 25588 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-06-13 09:09:42,622 INFO L241 Difference]: Finished difference. Result has 471 places, 670 transitions, 24039 flow [2021-06-13 09:09:42,623 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23591, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24039, PETRI_PLACES=471, PETRI_TRANSITIONS=670} [2021-06-13 09:09:42,623 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 447 predicate places. [2021-06-13 09:09:42,623 INFO L482 AbstractCegarLoop]: Abstraction has has 471 places, 670 transitions, 24039 flow [2021-06-13 09:09:42,623 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:42,623 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:42,623 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:42,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-06-13 09:09:42,623 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:42,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:42,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1428078402, now seen corresponding path program 33 times [2021-06-13 09:09:42,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:42,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349521709] [2021-06-13 09:09:42,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:42,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:42,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:09:42,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:42,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:42,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349521709] [2021-06-13 09:09:42,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349521709] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:42,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979274981] [2021-06-13 09:09:42,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:42,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:09:42,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:09:42,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:09:42,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:09:42,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:42,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:42,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:42,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:42,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:42,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:42,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:42,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:42,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:42,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:42,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:42,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:42,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:42,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:42,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:42,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:42,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:42,728 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:09:42,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:09:42,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:42,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:42,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:09:42,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:42,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:42,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979274981] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:42,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:09:42,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-13 09:09:42,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291768905] [2021-06-13 09:09:42,737 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 09:09:42,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:42,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 09:09:42,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-13 09:09:42,737 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:42,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 670 transitions, 24039 flow. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:42,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:42,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:42,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:45,072 INFO L129 PetriNetUnfolder]: 3900/7050 cut-off events. [2021-06-13 09:09:45,072 INFO L130 PetriNetUnfolder]: For 405779/405805 co-relation queries the response was YES. [2021-06-13 09:09:45,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80978 conditions, 7050 events. 3900/7050 cut-off events. For 405779/405805 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 54390 event pairs, 714 based on Foata normal form. 8/7058 useless extension candidates. Maximal degree in co-relation 80601. Up to 3372 conditions per place. [2021-06-13 09:09:45,213 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 590 selfloop transitions, 142 changer transitions 0/743 dead transitions. [2021-06-13 09:09:45,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 743 transitions, 27337 flow [2021-06-13 09:09:45,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:45,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:45,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2021-06-13 09:09:45,214 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8116883116883117 [2021-06-13 09:09:45,214 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 125 transitions. [2021-06-13 09:09:45,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 125 transitions. [2021-06-13 09:09:45,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:45,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 125 transitions. [2021-06-13 09:09:45,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:45,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:45,214 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:45,214 INFO L185 Difference]: Start difference. First operand has 471 places, 670 transitions, 24039 flow. Second operand 7 states and 125 transitions. [2021-06-13 09:09:45,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 743 transitions, 27337 flow [2021-06-13 09:09:47,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 743 transitions, 26729 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-06-13 09:09:47,118 INFO L241 Difference]: Finished difference. Result has 474 places, 682 transitions, 24398 flow [2021-06-13 09:09:47,119 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23431, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=670, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24398, PETRI_PLACES=474, PETRI_TRANSITIONS=682} [2021-06-13 09:09:47,119 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 450 predicate places. [2021-06-13 09:09:47,119 INFO L482 AbstractCegarLoop]: Abstraction has has 474 places, 682 transitions, 24398 flow [2021-06-13 09:09:47,119 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:47,119 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:47,119 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:47,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable278 [2021-06-13 09:09:47,333 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:47,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:47,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1808776622, now seen corresponding path program 32 times [2021-06-13 09:09:47,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:47,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335183432] [2021-06-13 09:09:47,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:47,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:47,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:47,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:47,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:47,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:09:47,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:47,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:47,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335183432] [2021-06-13 09:09:47,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335183432] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:47,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181078858] [2021-06-13 09:09:47,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:47,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:09:47,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:09:47,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:09:47,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:09:47,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:47,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:47,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:47,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:09:47,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:47,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:47,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:47,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:47,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:47,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:47,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:09:47,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:47,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:47,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:09:47,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:47,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:47,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:47,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:47,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:47,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:09:47,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:47,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:47,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:47,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:47,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:47,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:47,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:47,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:47,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:47,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:47,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:47,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:47,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:47,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:47,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:47,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:47,455 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:09:47,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:09:47,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:47,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:47,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:09:47,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:47,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:47,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:47,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181078858] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:47,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:09:47,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:09:47,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058149939] [2021-06-13 09:09:47,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:09:47,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:47,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:09:47,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:09:47,465 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:47,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 682 transitions, 24398 flow. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:47,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:47,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:47,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:49,784 INFO L129 PetriNetUnfolder]: 3871/7024 cut-off events. [2021-06-13 09:09:49,784 INFO L130 PetriNetUnfolder]: For 405730/405756 co-relation queries the response was YES. [2021-06-13 09:09:49,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80471 conditions, 7024 events. 3871/7024 cut-off events. For 405730/405756 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 54646 event pairs, 1117 based on Foata normal form. 16/7040 useless extension candidates. Maximal degree in co-relation 80088. Up to 4228 conditions per place. [2021-06-13 09:09:49,905 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 452 selfloop transitions, 240 changer transitions 0/703 dead transitions. [2021-06-13 09:09:49,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 703 transitions, 26238 flow [2021-06-13 09:09:49,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2021-06-13 09:09:49,906 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8051948051948052 [2021-06-13 09:09:49,906 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 124 transitions. [2021-06-13 09:09:49,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 124 transitions. [2021-06-13 09:09:49,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:49,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 124 transitions. [2021-06-13 09:09:49,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:49,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:49,907 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:49,907 INFO L185 Difference]: Start difference. First operand has 474 places, 682 transitions, 24398 flow. Second operand 7 states and 124 transitions. [2021-06-13 09:09:49,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 703 transitions, 26238 flow [2021-06-13 09:09:51,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 703 transitions, 26051 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-06-13 09:09:51,814 INFO L241 Difference]: Finished difference. Result has 475 places, 680 transitions, 24655 flow [2021-06-13 09:09:51,814 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=24175, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24655, PETRI_PLACES=475, PETRI_TRANSITIONS=680} [2021-06-13 09:09:51,814 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 451 predicate places. [2021-06-13 09:09:51,814 INFO L482 AbstractCegarLoop]: Abstraction has has 475 places, 680 transitions, 24655 flow [2021-06-13 09:09:51,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:51,814 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:51,814 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:52,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable279 [2021-06-13 09:09:52,015 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:52,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:52,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1404371450, now seen corresponding path program 34 times [2021-06-13 09:09:52,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:52,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173130352] [2021-06-13 09:09:52,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:52,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:52,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:52,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:09:52,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:52,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:52,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173130352] [2021-06-13 09:09:52,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173130352] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:52,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941807572] [2021-06-13 09:09:52,048 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:52,075 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:09:52,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:09:52,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:09:52,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:09:52,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:52,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:52,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:52,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:52,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:52,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:52,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:52,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:52,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:52,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:52,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:52,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:52,122 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:09:52,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:09:52,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:52,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:09:52,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:09:52,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:52,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:52,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:52,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941807572] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:52,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:09:52,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:09:52,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892562679] [2021-06-13 09:09:52,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:09:52,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:52,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:09:52,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:09:52,129 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:52,129 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 680 transitions, 24655 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:52,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:52,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:52,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:54,589 INFO L129 PetriNetUnfolder]: 4073/7366 cut-off events. [2021-06-13 09:09:54,589 INFO L130 PetriNetUnfolder]: For 420721/420747 co-relation queries the response was YES. [2021-06-13 09:09:54,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83383 conditions, 7366 events. 4073/7366 cut-off events. For 420721/420747 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 57188 event pairs, 802 based on Foata normal form. 12/7378 useless extension candidates. Maximal degree in co-relation 82994. Up to 3372 conditions per place. [2021-06-13 09:09:54,739 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 622 selfloop transitions, 116 changer transitions 0/749 dead transitions. [2021-06-13 09:09:54,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 749 transitions, 27621 flow [2021-06-13 09:09:54,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:54,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:54,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2021-06-13 09:09:54,740 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8116883116883117 [2021-06-13 09:09:54,740 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 125 transitions. [2021-06-13 09:09:54,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 125 transitions. [2021-06-13 09:09:54,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:54,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 125 transitions. [2021-06-13 09:09:54,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:54,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:54,741 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:54,741 INFO L185 Difference]: Start difference. First operand has 475 places, 680 transitions, 24655 flow. Second operand 7 states and 125 transitions. [2021-06-13 09:09:54,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 749 transitions, 27621 flow [2021-06-13 09:09:56,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 749 transitions, 27131 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-06-13 09:09:56,706 INFO L241 Difference]: Finished difference. Result has 479 places, 688 transitions, 24913 flow [2021-06-13 09:09:56,706 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=24100, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24913, PETRI_PLACES=479, PETRI_TRANSITIONS=688} [2021-06-13 09:09:56,706 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 455 predicate places. [2021-06-13 09:09:56,706 INFO L482 AbstractCegarLoop]: Abstraction has has 479 places, 688 transitions, 24913 flow [2021-06-13 09:09:56,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:56,706 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:09:56,706 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:09:56,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable280 [2021-06-13 09:09:56,907 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:09:56,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:09:56,907 INFO L82 PathProgramCache]: Analyzing trace with hash -794214202, now seen corresponding path program 35 times [2021-06-13 09:09:56,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:09:56,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199563475] [2021-06-13 09:09:56,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:09:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:09:56,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:56,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:56,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:56,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:56,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:09:56,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:56,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:56,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:56,941 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:09:56,941 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199563475] [2021-06-13 09:09:56,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199563475] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:56,941 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804275749] [2021-06-13 09:09:56,941 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:09:56,995 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:09:56,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:09:56,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:09:56,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:09:56,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:56,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:56,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:56,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:56,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:56,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:56,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:56,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:56,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:57,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:57,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:57,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:57,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:57,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:57,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:57,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:57,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:57,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:57,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:57,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:57,029 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:09:57,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:09:57,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:57,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:09:57,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:09:57,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:57,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,033 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:09:57,033 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:57,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,035 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:09:57,035 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:57,036 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:09:57,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:09:57,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:57,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:57,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:57,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:09:57,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:09:57,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:09:57,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:09:57,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:09:57,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:09:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:09:57,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804275749] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:09:57,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:09:57,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-13 09:09:57,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497212998] [2021-06-13 09:09:57,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 09:09:57,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:09:57,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 09:09:57,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-13 09:09:57,059 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:09:57,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 688 transitions, 24913 flow. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:57,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:09:57,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:09:57,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:09:59,493 INFO L129 PetriNetUnfolder]: 4053/7305 cut-off events. [2021-06-13 09:09:59,493 INFO L130 PetriNetUnfolder]: For 417734/417760 co-relation queries the response was YES. [2021-06-13 09:09:59,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83020 conditions, 7305 events. 4053/7305 cut-off events. For 417734/417760 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 56460 event pairs, 832 based on Foata normal form. 10/7315 useless extension candidates. Maximal degree in co-relation 82624. Up to 3372 conditions per place. [2021-06-13 09:09:59,620 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 620 selfloop transitions, 106 changer transitions 5/742 dead transitions. [2021-06-13 09:09:59,620 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 742 transitions, 27302 flow [2021-06-13 09:09:59,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:09:59,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:09:59,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2021-06-13 09:09:59,621 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7987012987012987 [2021-06-13 09:09:59,621 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 123 transitions. [2021-06-13 09:09:59,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 123 transitions. [2021-06-13 09:09:59,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:09:59,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 123 transitions. [2021-06-13 09:09:59,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:59,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:59,621 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:09:59,621 INFO L185 Difference]: Start difference. First operand has 479 places, 688 transitions, 24913 flow. Second operand 7 states and 123 transitions. [2021-06-13 09:09:59,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 742 transitions, 27302 flow [2021-06-13 09:10:01,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 742 transitions, 27215 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-06-13 09:10:01,617 INFO L241 Difference]: Finished difference. Result has 483 places, 680 transitions, 24774 flow [2021-06-13 09:10:01,617 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=24624, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24774, PETRI_PLACES=483, PETRI_TRANSITIONS=680} [2021-06-13 09:10:01,617 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 459 predicate places. [2021-06-13 09:10:01,617 INFO L482 AbstractCegarLoop]: Abstraction has has 483 places, 680 transitions, 24774 flow [2021-06-13 09:10:01,617 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:01,617 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:10:01,617 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:10:01,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable281 [2021-06-13 09:10:01,818 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:10:01,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:10:01,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1549463332, now seen corresponding path program 36 times [2021-06-13 09:10:01,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:10:01,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425091528] [2021-06-13 09:10:01,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:10:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:10:01,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:01,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:10:01,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:10:01,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:01,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:01,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:10:01,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425091528] [2021-06-13 09:10:01,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425091528] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:01,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571496707] [2021-06-13 09:10:01,856 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:10:01,948 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-13 09:10:01,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:10:01,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:10:01,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:10:01,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:01,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:01,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:01,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:01,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:01,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:01,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:01,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:01,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:01,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:01,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:10:01,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:01,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:01,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:10:01,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:01,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:01,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:01,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:01,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:01,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:01,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:01,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:01,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:01,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:01,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:01,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:01,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:01,992 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:10:01,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:10:01,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:01,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:10:01,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:10:01,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:01,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,995 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:10:01,996 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:01,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:02,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:02,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:02,002 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:10:02,002 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:02,003 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:10:02,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:02,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:02,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:02,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:02,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:02,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:02,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:02,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:02,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:02,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:02,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:10:02,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:02,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:02,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:02,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571496707] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:02,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:10:02,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:10:02,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119957099] [2021-06-13 09:10:02,026 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:10:02,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:10:02,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:10:02,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:10:02,026 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:10:02,027 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 680 transitions, 24774 flow. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:02,027 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:10:02,027 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:10:02,027 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:10:04,540 INFO L129 PetriNetUnfolder]: 4033/7269 cut-off events. [2021-06-13 09:10:04,540 INFO L130 PetriNetUnfolder]: For 418690/418716 co-relation queries the response was YES. [2021-06-13 09:10:04,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82765 conditions, 7269 events. 4033/7269 cut-off events. For 418690/418716 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 56037 event pairs, 797 based on Foata normal form. 4/7273 useless extension candidates. Maximal degree in co-relation 82363. Up to 3749 conditions per place. [2021-06-13 09:10:04,687 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 434 selfloop transitions, 268 changer transitions 4/717 dead transitions. [2021-06-13 09:10:04,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 717 transitions, 26910 flow [2021-06-13 09:10:04,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:10:04,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:10:04,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2021-06-13 09:10:04,688 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7987012987012987 [2021-06-13 09:10:04,688 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 123 transitions. [2021-06-13 09:10:04,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 123 transitions. [2021-06-13 09:10:04,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:10:04,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 123 transitions. [2021-06-13 09:10:04,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:04,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:04,689 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:04,689 INFO L185 Difference]: Start difference. First operand has 483 places, 680 transitions, 24774 flow. Second operand 7 states and 123 transitions. [2021-06-13 09:10:04,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 717 transitions, 26910 flow [2021-06-13 09:10:06,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 717 transitions, 26712 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-06-13 09:10:06,807 INFO L241 Difference]: Finished difference. Result has 484 places, 677 transitions, 25038 flow [2021-06-13 09:10:06,808 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=24515, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=268, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=25038, PETRI_PLACES=484, PETRI_TRANSITIONS=677} [2021-06-13 09:10:06,808 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 460 predicate places. [2021-06-13 09:10:06,808 INFO L482 AbstractCegarLoop]: Abstraction has has 484 places, 677 transitions, 25038 flow [2021-06-13 09:10:06,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:06,808 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:10:06,808 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:10:07,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:10:07,025 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:10:07,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:10:07,025 INFO L82 PathProgramCache]: Analyzing trace with hash 752878372, now seen corresponding path program 37 times [2021-06-13 09:10:07,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:10:07,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686063986] [2021-06-13 09:10:07,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:10:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:10:07,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:07,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:10:07,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:07,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:10:07,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686063986] [2021-06-13 09:10:07,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686063986] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:07,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771266157] [2021-06-13 09:10:07,062 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:10:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:10:07,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:10:07,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:10:07,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:07,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:07,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:07,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:07,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:07,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:07,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:07,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:07,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:07,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:07,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:07,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:07,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:07,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:07,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:07,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:07,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:07,154 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:10:07,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:10:07,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:07,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:10:07,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:10:07,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:07,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:07,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:07,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771266157] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:07,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:10:07,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-13 09:10:07,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446600151] [2021-06-13 09:10:07,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 09:10:07,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:10:07,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 09:10:07,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 09:10:07,165 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:10:07,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 677 transitions, 25038 flow. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:07,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:10:07,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:10:07,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:10:09,830 INFO L129 PetriNetUnfolder]: 4455/8036 cut-off events. [2021-06-13 09:10:09,830 INFO L130 PetriNetUnfolder]: For 466902/466928 co-relation queries the response was YES. [2021-06-13 09:10:09,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91094 conditions, 8036 events. 4455/8036 cut-off events. For 466902/466928 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 62958 event pairs, 792 based on Foata normal form. 4/8040 useless extension candidates. Maximal degree in co-relation 90693. Up to 3372 conditions per place. [2021-06-13 09:10:09,979 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 621 selfloop transitions, 130 changer transitions 0/762 dead transitions. [2021-06-13 09:10:09,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 762 transitions, 28741 flow [2021-06-13 09:10:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:10:09,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:10:09,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2021-06-13 09:10:09,980 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-06-13 09:10:09,980 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 126 transitions. [2021-06-13 09:10:09,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 126 transitions. [2021-06-13 09:10:09,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:10:09,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 126 transitions. [2021-06-13 09:10:09,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:09,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:09,981 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:09,981 INFO L185 Difference]: Start difference. First operand has 484 places, 677 transitions, 25038 flow. Second operand 7 states and 126 transitions. [2021-06-13 09:10:09,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 762 transitions, 28741 flow [2021-06-13 09:10:12,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 762 transitions, 27818 flow, removed 23 selfloop flow, removed 11 redundant places. [2021-06-13 09:10:12,364 INFO L241 Difference]: Finished difference. Result has 476 places, 694 transitions, 25360 flow [2021-06-13 09:10:12,364 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=24182, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=25360, PETRI_PLACES=476, PETRI_TRANSITIONS=694} [2021-06-13 09:10:12,364 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 452 predicate places. [2021-06-13 09:10:12,365 INFO L482 AbstractCegarLoop]: Abstraction has has 476 places, 694 transitions, 25360 flow [2021-06-13 09:10:12,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:12,365 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:10:12,365 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:10:12,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:10:12,565 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:10:12,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:10:12,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1157037570, now seen corresponding path program 38 times [2021-06-13 09:10:12,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:10:12,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806948026] [2021-06-13 09:10:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:10:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:10:12,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:12,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:12,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:10:12,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:10:12,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:12,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:12,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:10:12,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806948026] [2021-06-13 09:10:12,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806948026] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:12,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718478756] [2021-06-13 09:10:12,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:10:12,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 09:10:12,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:10:12,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:10:12,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:10:12,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:12,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:12,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:12,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:12,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:12,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:12,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:12,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:12,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:12,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:12,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:10:12,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:12,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:12,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:10:12,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:12,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:12,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:12,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:12,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:12,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:12,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:12,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:12,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:12,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:12,706 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:10:12,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:10:12,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:12,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:10:12,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:10:12,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:12,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,710 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:10:12,711 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:12,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:12,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:12,713 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:10:12,713 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:12,715 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:10:12,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:12,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:12,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:12,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:12,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:12,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:12,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:12,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:12,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:12,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:12,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:10:12,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:12,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:12,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:12,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718478756] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:12,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:10:12,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:10:12,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006531628] [2021-06-13 09:10:12,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:10:12,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:10:12,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:10:12,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:10:12,743 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:10:12,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 694 transitions, 25360 flow. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:12,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:10:12,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:10:12,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:10:15,713 INFO L129 PetriNetUnfolder]: 4679/8520 cut-off events. [2021-06-13 09:10:15,713 INFO L130 PetriNetUnfolder]: For 480067/480093 co-relation queries the response was YES. [2021-06-13 09:10:15,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95445 conditions, 8520 events. 4679/8520 cut-off events. For 480067/480093 co-relation queries the response was YES. Maximal size of possible extension queue 749. Compared 68363 event pairs, 1125 based on Foata normal form. 12/8532 useless extension candidates. Maximal degree in co-relation 94760. Up to 5712 conditions per place. [2021-06-13 09:10:15,871 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 528 selfloop transitions, 230 changer transitions 2/771 dead transitions. [2021-06-13 09:10:15,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 771 transitions, 28763 flow [2021-06-13 09:10:15,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:10:15,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:10:15,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2021-06-13 09:10:15,872 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7987012987012987 [2021-06-13 09:10:15,872 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 123 transitions. [2021-06-13 09:10:15,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 123 transitions. [2021-06-13 09:10:15,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:10:15,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 123 transitions. [2021-06-13 09:10:15,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:15,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:15,873 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:15,873 INFO L185 Difference]: Start difference. First operand has 476 places, 694 transitions, 25360 flow. Second operand 7 states and 123 transitions. [2021-06-13 09:10:15,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 771 transitions, 28763 flow [2021-06-13 09:10:18,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 771 transitions, 28532 flow, removed 49 selfloop flow, removed 3 redundant places. [2021-06-13 09:10:18,461 INFO L241 Difference]: Finished difference. Result has 483 places, 715 transitions, 26470 flow [2021-06-13 09:10:18,461 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=25189, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26470, PETRI_PLACES=483, PETRI_TRANSITIONS=715} [2021-06-13 09:10:18,461 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 459 predicate places. [2021-06-13 09:10:18,461 INFO L482 AbstractCegarLoop]: Abstraction has has 483 places, 715 transitions, 26470 flow [2021-06-13 09:10:18,461 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:18,461 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:10:18,461 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:10:18,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable288 [2021-06-13 09:10:18,664 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:10:18,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:10:18,664 INFO L82 PathProgramCache]: Analyzing trace with hash 405078654, now seen corresponding path program 33 times [2021-06-13 09:10:18,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:10:18,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345582144] [2021-06-13 09:10:18,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:10:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:10:18,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:10:18,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:18,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:18,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:10:18,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:10:18,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:18,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:10:18,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345582144] [2021-06-13 09:10:18,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345582144] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:18,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400004544] [2021-06-13 09:10:18,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:10:18,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:10:18,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:10:18,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:10:18,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:10:18,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:10:18,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:10:18,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:10:18,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:10:18,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:18,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:18,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:18,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:18,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:18,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:18,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:18,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:18,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:18,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:18,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:10:18,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:18,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:18,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:10:18,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:18,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:18,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:10:18,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:18,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:18,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:10:18,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:18,801 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:10:18,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:10:18,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:18,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:10:18,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:10:18,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:18,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:18,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400004544] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:18,811 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:10:18,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:10:18,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17251224] [2021-06-13 09:10:18,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:10:18,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:10:18,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:10:18,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:10:18,812 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:10:18,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 715 transitions, 26470 flow. Second operand has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:18,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:10:18,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:10:18,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:10:21,686 INFO L129 PetriNetUnfolder]: 4662/8434 cut-off events. [2021-06-13 09:10:21,686 INFO L130 PetriNetUnfolder]: For 481119/481145 co-relation queries the response was YES. [2021-06-13 09:10:21,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96414 conditions, 8434 events. 4662/8434 cut-off events. For 481119/481145 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 67398 event pairs, 1372 based on Foata normal form. 8/8442 useless extension candidates. Maximal degree in co-relation 95680. Up to 5428 conditions per place. [2021-06-13 09:10:21,989 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 504 selfloop transitions, 231 changer transitions 0/746 dead transitions. [2021-06-13 09:10:21,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 746 transitions, 28679 flow [2021-06-13 09:10:21,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:10:21,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:10:21,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2021-06-13 09:10:21,990 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-06-13 09:10:21,990 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 126 transitions. [2021-06-13 09:10:21,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 126 transitions. [2021-06-13 09:10:21,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:10:21,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 126 transitions. [2021-06-13 09:10:21,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:21,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:21,990 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:21,990 INFO L185 Difference]: Start difference. First operand has 483 places, 715 transitions, 26470 flow. Second operand 7 states and 126 transitions. [2021-06-13 09:10:21,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 746 transitions, 28679 flow [2021-06-13 09:10:24,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 746 transitions, 28435 flow, removed 22 selfloop flow, removed 2 redundant places. [2021-06-13 09:10:24,764 INFO L241 Difference]: Finished difference. Result has 490 places, 721 transitions, 26944 flow [2021-06-13 09:10:24,765 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=26226, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26944, PETRI_PLACES=490, PETRI_TRANSITIONS=721} [2021-06-13 09:10:24,765 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 466 predicate places. [2021-06-13 09:10:24,765 INFO L482 AbstractCegarLoop]: Abstraction has has 490 places, 721 transitions, 26944 flow [2021-06-13 09:10:24,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:24,765 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:10:24,765 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:10:24,980 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable291 [2021-06-13 09:10:24,981 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:10:24,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:10:24,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1021539038, now seen corresponding path program 39 times [2021-06-13 09:10:24,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:10:24,981 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693446226] [2021-06-13 09:10:24,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:10:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:10:24,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:24,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:24,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:24,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:24,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:24,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:24,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:24,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:10:25,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:25,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:10:25,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693446226] [2021-06-13 09:10:25,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693446226] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:25,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661823161] [2021-06-13 09:10:25,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:10:25,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 09:10:25,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:10:25,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:10:25,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:10:25,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:25,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:25,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:25,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:25,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:25,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:25,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:10:25,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:25,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:25,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:10:25,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:25,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:25,098 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-13 09:10:25,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:10:25,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:25,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:10:25,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 09:10:25,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:25,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,101 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:10:25,102 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:25,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:25,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:25,104 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-13 09:10:25,104 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:25,105 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-06-13 09:10:25,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:25,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:25,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:25,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:25,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:25,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:25,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:25,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:25,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:25,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:25,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:25,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:25,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:10:25,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:25,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:25,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661823161] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:25,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:10:25,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-13 09:10:25,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636890412] [2021-06-13 09:10:25,132 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 09:10:25,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:10:25,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 09:10:25,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-06-13 09:10:25,133 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:10:25,133 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 721 transitions, 26944 flow. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:25,133 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:10:25,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:10:25,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:10:28,004 INFO L129 PetriNetUnfolder]: 4686/8543 cut-off events. [2021-06-13 09:10:28,004 INFO L130 PetriNetUnfolder]: For 471819/471845 co-relation queries the response was YES. [2021-06-13 09:10:28,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95848 conditions, 8543 events. 4686/8543 cut-off events. For 471819/471845 co-relation queries the response was YES. Maximal size of possible extension queue 753. Compared 68774 event pairs, 1103 based on Foata normal form. 4/8547 useless extension candidates. Maximal degree in co-relation 95107. Up to 5696 conditions per place. [2021-06-13 09:10:28,343 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 528 selfloop transitions, 231 changer transitions 5/775 dead transitions. [2021-06-13 09:10:28,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 775 transitions, 29752 flow [2021-06-13 09:10:28,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:10:28,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:10:28,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions. [2021-06-13 09:10:28,344 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2021-06-13 09:10:28,344 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 121 transitions. [2021-06-13 09:10:28,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 121 transitions. [2021-06-13 09:10:28,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:10:28,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 121 transitions. [2021-06-13 09:10:28,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:28,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:28,344 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:28,344 INFO L185 Difference]: Start difference. First operand has 490 places, 721 transitions, 26944 flow. Second operand 7 states and 121 transitions. [2021-06-13 09:10:28,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 775 transitions, 29752 flow [2021-06-13 09:10:30,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 775 transitions, 29353 flow, removed 16 selfloop flow, removed 2 redundant places. [2021-06-13 09:10:30,906 INFO L241 Difference]: Finished difference. Result has 497 places, 723 transitions, 27173 flow [2021-06-13 09:10:30,907 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=26545, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=721, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27173, PETRI_PLACES=497, PETRI_TRANSITIONS=723} [2021-06-13 09:10:30,907 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 473 predicate places. [2021-06-13 09:10:30,907 INFO L482 AbstractCegarLoop]: Abstraction has has 497 places, 723 transitions, 27173 flow [2021-06-13 09:10:30,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:30,907 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:10:30,907 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:10:31,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292,93 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:10:31,108 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:10:31,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:10:31,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1810936940, now seen corresponding path program 34 times [2021-06-13 09:10:31,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:10:31,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908836477] [2021-06-13 09:10:31,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:10:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:10:31,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:31,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:31,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:31,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:10:31,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:31,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:31,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:31,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:31,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:31,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:31,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:31,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:31,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:31,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:31,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:31,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:10:31,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908836477] [2021-06-13 09:10:31,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908836477] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:10:31,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:10:31,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:10:31,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513379337] [2021-06-13 09:10:31,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:10:31,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:10:31,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:10:31,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:10:31,140 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:10:31,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 723 transitions, 27173 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:31,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:10:31,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:10:31,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:10:34,086 INFO L129 PetriNetUnfolder]: 4684/8517 cut-off events. [2021-06-13 09:10:34,086 INFO L130 PetriNetUnfolder]: For 475729/475755 co-relation queries the response was YES. [2021-06-13 09:10:34,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96328 conditions, 8517 events. 4684/8517 cut-off events. For 475729/475755 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 68549 event pairs, 1414 based on Foata normal form. 4/8521 useless extension candidates. Maximal degree in co-relation 95589. Up to 5470 conditions per place. [2021-06-13 09:10:34,398 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 514 selfloop transitions, 220 changer transitions 2/747 dead transitions. [2021-06-13 09:10:34,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 747 transitions, 29135 flow [2021-06-13 09:10:34,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:10:34,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:10:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:10:34,399 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:10:34,399 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:10:34,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:10:34,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:10:34,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:10:34,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:34,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:34,399 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:34,399 INFO L185 Difference]: Start difference. First operand has 497 places, 723 transitions, 27173 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:10:34,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 747 transitions, 29135 flow [2021-06-13 09:10:36,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 747 transitions, 28759 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-06-13 09:10:37,003 INFO L241 Difference]: Finished difference. Result has 499 places, 722 transitions, 27175 flow [2021-06-13 09:10:37,003 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=26742, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=722, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27175, PETRI_PLACES=499, PETRI_TRANSITIONS=722} [2021-06-13 09:10:37,003 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 475 predicate places. [2021-06-13 09:10:37,003 INFO L482 AbstractCegarLoop]: Abstraction has has 499 places, 722 transitions, 27175 flow [2021-06-13 09:10:37,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:37,004 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:10:37,004 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:10:37,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-06-13 09:10:37,004 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:10:37,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:10:37,004 INFO L82 PathProgramCache]: Analyzing trace with hash 566516980, now seen corresponding path program 40 times [2021-06-13 09:10:37,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:10:37,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189062380] [2021-06-13 09:10:37,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:10:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:10:37,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:37,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:37,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:10:37,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 09:10:37,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 09:10:37,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:37,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:10:37,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189062380] [2021-06-13 09:10:37,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189062380] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:37,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440186392] [2021-06-13 09:10:37,045 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:10:37,071 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 09:10:37,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 09:10:37,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-13 09:10:37,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 09:10:37,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:37,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:37,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:37,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:37,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:37,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:37,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:37,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:37,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:37,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:37,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:37,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:37,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:37,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:37,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:10:37,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:37,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:37,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 09:10:37,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:37,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:37,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:37,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:37,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:37,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:37,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:37,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:37,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:10:37,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:37,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:37,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:10:37,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 09:10:37,137 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-06-13 09:10:37,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:10:37,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-13 09:10:37,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 09:10:37,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 09:10:37,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:37,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:37,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:37,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440186392] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 09:10:37,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 09:10:37,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-06-13 09:10:37,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810197247] [2021-06-13 09:10:37,143 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 09:10:37,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:10:37,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 09:10:37,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-06-13 09:10:37,143 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:10:37,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 722 transitions, 27175 flow. Second operand has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:37,144 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:10:37,144 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:10:37,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:10:40,327 INFO L129 PetriNetUnfolder]: 4659/8490 cut-off events. [2021-06-13 09:10:40,327 INFO L130 PetriNetUnfolder]: For 478388/478414 co-relation queries the response was YES. [2021-06-13 09:10:40,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95861 conditions, 8490 events. 4659/8490 cut-off events. For 478388/478414 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 68237 event pairs, 1128 based on Foata normal form. 16/8506 useless extension candidates. Maximal degree in co-relation 95229. Up to 5704 conditions per place. [2021-06-13 09:10:40,496 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 524 selfloop transitions, 234 changer transitions 0/769 dead transitions. [2021-06-13 09:10:40,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 769 transitions, 29823 flow [2021-06-13 09:10:40,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:10:40,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:10:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2021-06-13 09:10:40,497 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7987012987012987 [2021-06-13 09:10:40,497 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 123 transitions. [2021-06-13 09:10:40,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 123 transitions. [2021-06-13 09:10:40,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:10:40,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 123 transitions. [2021-06-13 09:10:40,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:40,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:40,497 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:40,497 INFO L185 Difference]: Start difference. First operand has 499 places, 722 transitions, 27175 flow. Second operand 7 states and 123 transitions. [2021-06-13 09:10:40,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 769 transitions, 29823 flow [2021-06-13 09:10:43,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 769 transitions, 29432 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-06-13 09:10:43,318 INFO L241 Difference]: Finished difference. Result has 500 places, 727 transitions, 27470 flow [2021-06-13 09:10:43,318 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=26768, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=721, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27470, PETRI_PLACES=500, PETRI_TRANSITIONS=727} [2021-06-13 09:10:43,318 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 476 predicate places. [2021-06-13 09:10:43,318 INFO L482 AbstractCegarLoop]: Abstraction has has 500 places, 727 transitions, 27470 flow [2021-06-13 09:10:43,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:43,318 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:10:43,318 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:10:43,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296,94 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 09:10:43,519 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:10:43,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:10:43,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1700625416, now seen corresponding path program 35 times [2021-06-13 09:10:43,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:10:43,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667399803] [2021-06-13 09:10:43,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:10:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:10:43,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:43,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:43,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:43,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:10:43,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:43,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:43,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:43,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:43,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:43,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:43,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:43,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:43,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:43,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:43,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:43,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:10:43,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667399803] [2021-06-13 09:10:43,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667399803] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:10:43,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:10:43,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:10:43,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655680671] [2021-06-13 09:10:43,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:10:43,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:10:43,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:10:43,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:10:43,550 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:10:43,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 727 transitions, 27470 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:43,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:10:43,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:10:43,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:10:46,525 INFO L129 PetriNetUnfolder]: 4655/8435 cut-off events. [2021-06-13 09:10:46,525 INFO L130 PetriNetUnfolder]: For 479006/479032 co-relation queries the response was YES. [2021-06-13 09:10:46,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95832 conditions, 8435 events. 4655/8435 cut-off events. For 479006/479032 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 67446 event pairs, 1401 based on Foata normal form. 2/8437 useless extension candidates. Maximal degree in co-relation 95136. Up to 5430 conditions per place. [2021-06-13 09:10:46,683 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 513 selfloop transitions, 218 changer transitions 5/747 dead transitions. [2021-06-13 09:10:46,684 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 747 transitions, 29333 flow [2021-06-13 09:10:46,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:10:46,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:10:46,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 118 transitions. [2021-06-13 09:10:46,684 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7662337662337663 [2021-06-13 09:10:46,684 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 118 transitions. [2021-06-13 09:10:46,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 118 transitions. [2021-06-13 09:10:46,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:10:46,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 118 transitions. [2021-06-13 09:10:46,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:46,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:46,685 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:46,685 INFO L185 Difference]: Start difference. First operand has 500 places, 727 transitions, 27470 flow. Second operand 7 states and 118 transitions. [2021-06-13 09:10:46,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 747 transitions, 29333 flow [2021-06-13 09:10:49,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 747 transitions, 29061 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-06-13 09:10:49,405 INFO L241 Difference]: Finished difference. Result has 500 places, 724 transitions, 27473 flow [2021-06-13 09:10:49,406 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=27157, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27473, PETRI_PLACES=500, PETRI_TRANSITIONS=724} [2021-06-13 09:10:49,406 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 476 predicate places. [2021-06-13 09:10:49,406 INFO L482 AbstractCegarLoop]: Abstraction has has 500 places, 724 transitions, 27473 flow [2021-06-13 09:10:49,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:49,406 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:10:49,406 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:10:49,406 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-06-13 09:10:49,406 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:10:49,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:10:49,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1550981428, now seen corresponding path program 41 times [2021-06-13 09:10:49,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:10:49,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339144172] [2021-06-13 09:10:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:10:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:10:49,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:49,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:49,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:49,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:49,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:49,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:49,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:49,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:49,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:49,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:49,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:49,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:49,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:49,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:49,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:10:49,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339144172] [2021-06-13 09:10:49,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339144172] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:10:49,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:10:49,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:10:49,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553679865] [2021-06-13 09:10:49,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:10:49,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:10:49,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:10:49,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:10:49,450 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:10:49,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 724 transitions, 27473 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:49,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:10:49,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:10:49,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:10:52,447 INFO L129 PetriNetUnfolder]: 4660/8518 cut-off events. [2021-06-13 09:10:52,447 INFO L130 PetriNetUnfolder]: For 479789/479815 co-relation queries the response was YES. [2021-06-13 09:10:52,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96406 conditions, 8518 events. 4660/8518 cut-off events. For 479789/479815 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 68739 event pairs, 1177 based on Foata normal form. 14/8532 useless extension candidates. Maximal degree in co-relation 95807. Up to 5693 conditions per place. [2021-06-13 09:10:52,613 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 553 selfloop transitions, 202 changer transitions 1/767 dead transitions. [2021-06-13 09:10:52,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 767 transitions, 29907 flow [2021-06-13 09:10:52,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:10:52,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:10:52,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2021-06-13 09:10:52,614 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2021-06-13 09:10:52,614 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 120 transitions. [2021-06-13 09:10:52,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 120 transitions. [2021-06-13 09:10:52,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:10:52,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 120 transitions. [2021-06-13 09:10:52,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:52,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:52,614 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:52,614 INFO L185 Difference]: Start difference. First operand has 500 places, 724 transitions, 27473 flow. Second operand 7 states and 120 transitions. [2021-06-13 09:10:52,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 767 transitions, 29907 flow [2021-06-13 09:10:55,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 767 transitions, 29453 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-06-13 09:10:55,165 INFO L241 Difference]: Finished difference. Result has 498 places, 725 transitions, 27452 flow [2021-06-13 09:10:55,166 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=27019, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=724, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27452, PETRI_PLACES=498, PETRI_TRANSITIONS=725} [2021-06-13 09:10:55,166 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 474 predicate places. [2021-06-13 09:10:55,166 INFO L482 AbstractCegarLoop]: Abstraction has has 498 places, 725 transitions, 27452 flow [2021-06-13 09:10:55,166 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:55,166 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:10:55,166 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:10:55,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-06-13 09:10:55,166 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:10:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:10:55,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1800188744, now seen corresponding path program 36 times [2021-06-13 09:10:55,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:10:55,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354146595] [2021-06-13 09:10:55,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:10:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:10:55,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:55,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:55,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:55,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:10:55,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:55,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:55,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:55,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:10:55,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:55,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:10:55,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:55,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:10:55,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:10:55,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:10:55,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:10:55,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:10:55,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354146595] [2021-06-13 09:10:55,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354146595] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:10:55,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:10:55,248 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:10:55,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470788462] [2021-06-13 09:10:55,248 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:10:55,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:10:55,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:10:55,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:10:55,249 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:10:55,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 725 transitions, 27452 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:55,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:10:55,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:10:55,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:10:58,242 INFO L129 PetriNetUnfolder]: 4655/8508 cut-off events. [2021-06-13 09:10:58,242 INFO L130 PetriNetUnfolder]: For 497968/497994 co-relation queries the response was YES. [2021-06-13 09:10:58,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97720 conditions, 8508 events. 4655/8508 cut-off events. For 497968/497994 co-relation queries the response was YES. Maximal size of possible extension queue 779. Compared 68875 event pairs, 1396 based on Foata normal form. 20/8528 useless extension candidates. Maximal degree in co-relation 96964. Up to 5453 conditions per place. [2021-06-13 09:10:58,400 INFO L132 encePairwiseOnDemand]: 15/22 looper letters, 532 selfloop transitions, 218 changer transitions 2/763 dead transitions. [2021-06-13 09:10:58,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 763 transitions, 29925 flow [2021-06-13 09:10:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 09:10:58,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 09:10:58,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2021-06-13 09:10:58,401 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7922077922077922 [2021-06-13 09:10:58,401 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 122 transitions. [2021-06-13 09:10:58,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 122 transitions. [2021-06-13 09:10:58,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:10:58,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 122 transitions. [2021-06-13 09:10:58,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:58,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:58,401 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:10:58,401 INFO L185 Difference]: Start difference. First operand has 498 places, 725 transitions, 27452 flow. Second operand 7 states and 122 transitions. [2021-06-13 09:10:58,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 763 transitions, 29925 flow [2021-06-13 09:11:01,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 763 transitions, 29696 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-06-13 09:11:01,162 INFO L241 Difference]: Finished difference. Result has 506 places, 729 transitions, 27892 flow [2021-06-13 09:11:01,162 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=27223, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=213, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=507, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27892, PETRI_PLACES=506, PETRI_TRANSITIONS=729} [2021-06-13 09:11:01,162 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 482 predicate places. [2021-06-13 09:11:01,162 INFO L482 AbstractCegarLoop]: Abstraction has has 506 places, 729 transitions, 27892 flow [2021-06-13 09:11:01,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:11:01,162 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:11:01,162 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:11:01,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-06-13 09:11:01,163 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:11:01,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:11:01,163 INFO L82 PathProgramCache]: Analyzing trace with hash 851610946, now seen corresponding path program 42 times [2021-06-13 09:11:01,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:11:01,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442011902] [2021-06-13 09:11:01,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:11:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:11:01,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:01,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:11:01,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:01,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:11:01,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:01,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 09:11:01,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:01,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 09:11:01,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:01,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 09:11:01,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:01,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-13 09:11:01,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:01,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 09:11:01,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:01,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:11:01,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:11:01,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:11:01,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442011902] [2021-06-13 09:11:01,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442011902] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:11:01,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:11:01,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 09:11:01,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95348428] [2021-06-13 09:11:01,213 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 09:11:01,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:11:01,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 09:11:01,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 09:11:01,213 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 22 [2021-06-13 09:11:01,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 729 transitions, 27892 flow. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:11:01,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:11:01,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 22 [2021-06-13 09:11:01,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 09:11:04,461 INFO L129 PetriNetUnfolder]: 4663/8562 cut-off events. [2021-06-13 09:11:04,461 INFO L130 PetriNetUnfolder]: For 519071/519097 co-relation queries the response was YES. [2021-06-13 09:11:04,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99414 conditions, 8562 events. 4663/8562 cut-off events. For 519071/519097 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 69601 event pairs, 1169 based on Foata normal form. 5/8567 useless extension candidates. Maximal degree in co-relation 98641. Up to 5859 conditions per place. [2021-06-13 09:11:04,621 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 550 selfloop transitions, 210 changer transitions 10/777 dead transitions. [2021-06-13 09:11:04,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 777 transitions, 30471 flow [2021-06-13 09:11:04,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 09:11:04,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 09:11:04,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 133 transitions. [2021-06-13 09:11:04,622 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7556818181818182 [2021-06-13 09:11:04,622 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 133 transitions. [2021-06-13 09:11:04,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 133 transitions. [2021-06-13 09:11:04,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 09:11:04,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 133 transitions. [2021-06-13 09:11:04,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:11:04,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:11:04,623 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 22.0) internal successors, (198), 9 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:11:04,623 INFO L185 Difference]: Start difference. First operand has 506 places, 729 transitions, 27892 flow. Second operand 8 states and 133 transitions. [2021-06-13 09:11:04,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 777 transitions, 30471 flow [2021-06-13 09:11:07,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 777 transitions, 30094 flow, removed 14 selfloop flow, removed 2 redundant places. [2021-06-13 09:11:07,454 INFO L241 Difference]: Finished difference. Result has 514 places, 727 transitions, 27950 flow [2021-06-13 09:11:07,454 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=27516, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27950, PETRI_PLACES=514, PETRI_TRANSITIONS=727} [2021-06-13 09:11:07,454 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 490 predicate places. [2021-06-13 09:11:07,454 INFO L482 AbstractCegarLoop]: Abstraction has has 514 places, 727 transitions, 27950 flow [2021-06-13 09:11:07,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:11:07,454 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 09:11:07,454 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 09:11:07,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-06-13 09:11:07,454 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 09:11:07,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 09:11:07,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1177222002, now seen corresponding path program 37 times [2021-06-13 09:11:07,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 09:11:07,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457466454] [2021-06-13 09:11:07,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 09:11:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 09:11:07,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:07,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:11:07,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:07,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-13 09:11:07,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:07,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:11:07,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:07,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:11:07,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:07,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 09:11:07,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:07,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 09:11:07,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 09:11:07,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 09:11:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 09:11:07,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 09:11:07,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457466454] [2021-06-13 09:11:07,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457466454] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 09:11:07,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 09:11:07,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 09:11:07,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782832661] [2021-06-13 09:11:07,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 09:11:07,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 09:11:07,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 09:11:07,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 09:11:07,496 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 22 [2021-06-13 09:11:07,496 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 727 transitions, 27950 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 09:11:07,496 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 09:11:07,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 22 [2021-06-13 09:11:07,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand