/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-OGIterative-CovSimpl-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 18:26:18,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 18:26:18,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 18:26:18,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 18:26:18,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 18:26:18,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 18:26:18,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 18:26:18,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 18:26:18,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 18:26:18,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 18:26:18,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 18:26:18,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 18:26:18,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 18:26:18,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 18:26:18,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 18:26:18,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 18:26:18,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 18:26:18,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 18:26:18,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 18:26:18,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 18:26:18,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 18:26:18,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 18:26:18,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 18:26:18,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 18:26:18,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-13 18:26:18,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-13 18:26:18,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-13 18:26:18,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-13 18:26:18,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-13 18:26:18,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-13 18:26:18,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 18:26:18,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 18:26:18,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 18:26:18,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 18:26:18,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 18:26:18,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 18:26:18,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 18:26:18,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 18:26:18,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 18:26:18,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 18:26:18,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 18:26:18,184 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-OGIterative-CovSimpl-Hitting.epf [2021-08-13 18:26:18,213 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 18:26:18,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 18:26:18,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 18:26:18,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 18:26:18,216 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 18:26:18,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 18:26:18,216 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 18:26:18,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 18:26:18,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 18:26:18,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 18:26:18,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 18:26:18,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 18:26:18,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 18:26:18,218 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 18:26:18,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 18:26:18,218 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 18:26:18,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 18:26:18,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 18:26:18,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 18:26:18,219 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 18:26:18,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 18:26:18,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 18:26:18,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 18:26:18,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 18:26:18,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 18:26:18,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 18:26:18,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 18:26:18,220 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 18:26:18,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 18:26:18,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 18:26:18,220 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 18:26:18,220 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 18:26:18,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 18:26:18,220 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 18:26:18,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 18:26:18,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 18:26:18,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 18:26:18,543 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 18:26:18,543 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 18:26:18,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl [2021-08-13 18:26:18,544 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl' [2021-08-13 18:26:18,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 18:26:18,600 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 18:26:18,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 18:26:18,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 18:26:18,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 18:26:18,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:26:18" (1/1) ... [2021-08-13 18:26:18,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:26:18" (1/1) ... [2021-08-13 18:26:18,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 18:26:18,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 18:26:18,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 18:26:18,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 18:26:18,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:26:18" (1/1) ... [2021-08-13 18:26:18,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:26:18" (1/1) ... [2021-08-13 18:26:18,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:26:18" (1/1) ... [2021-08-13 18:26:18,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:26:18" (1/1) ... [2021-08-13 18:26:18,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:26:18" (1/1) ... [2021-08-13 18:26:18,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:26:18" (1/1) ... [2021-08-13 18:26:18,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:26:18" (1/1) ... [2021-08-13 18:26:18,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 18:26:18,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 18:26:18,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 18:26:18,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 18:26:18,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:26:18" (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 [2021-08-13 18:26:18,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-13 18:26:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-13 18:26:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-13 18:26:18,804 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-13 18:26:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-13 18:26:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-13 18:26:18,804 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 18:26:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 18:26:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 18:26:18,804 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-13 18:26:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-13 18:26:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-13 18:26:18,805 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 18:26:19,093 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 18:26:19,094 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-08-13 18:26:19,095 INFO L202 PluginConnector]: Adding new model word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 06:26:19 BoogieIcfgContainer [2021-08-13 18:26:19,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 18:26:19,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 18:26:19,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 18:26:19,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 18:26:19,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:26:18" (1/2) ... [2021-08-13 18:26:19,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9eb4b3 and model type word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 06:26:19, skipping insertion in model container [2021-08-13 18:26:19,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 06:26:19" (2/2) ... [2021-08-13 18:26:19,113 INFO L111 eAbstractionObserver]: Analyzing ICFG word-subst.wvr.bpl [2021-08-13 18:26:19,132 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 18:26:19,132 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 18:26:19,133 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 18:26:19,187 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-08-13 18:26:19,202 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 18:26:19,215 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 18:26:19,216 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 18:26:19,216 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 18:26:19,216 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 18:26:19,216 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 18:26:19,216 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 18:26:19,216 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 18:26:19,216 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 18:26:19,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 28 transitions, 80 flow [2021-08-13 18:26:19,249 INFO L129 PetriNetUnfolder]: 6/25 cut-off events. [2021-08-13 18:26:19,249 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-08-13 18:26:19,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 6/25 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 33 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2021-08-13 18:26:19,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 28 transitions, 80 flow [2021-08-13 18:26:19,255 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 23 transitions, 64 flow [2021-08-13 18:26:19,265 INFO L129 PetriNetUnfolder]: 6/22 cut-off events. [2021-08-13 18:26:19,266 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-08-13 18:26:19,266 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:19,266 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:19,266 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:19,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:19,270 INFO L82 PathProgramCache]: Analyzing trace with hash -722032350, now seen corresponding path program 1 times [2021-08-13 18:26:19,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:19,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252670390] [2021-08-13 18:26:19,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:19,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:19,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:19,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:19,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:19,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:19,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:26:19,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:19,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:19,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:19,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:19,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252670390] [2021-08-13 18:26:19,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252670390] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:19,451 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:19,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 18:26:19,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239197093] [2021-08-13 18:26:19,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 18:26:19,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:19,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 18:26:19,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 18:26:19,476 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 28 [2021-08-13 18:26:19,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:19,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:19,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 28 [2021-08-13 18:26:19,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:19,523 INFO L129 PetriNetUnfolder]: 5/27 cut-off events. [2021-08-13 18:26:19,523 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-08-13 18:26:19,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 27 events. 5/27 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 53 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 27. Up to 4 conditions per place. [2021-08-13 18:26:19,527 INFO L132 encePairwiseOnDemand]: 26/28 looper letters, 3 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2021-08-13 18:26:19,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 72 flow [2021-08-13 18:26:19,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 18:26:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 18:26:19,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2021-08-13 18:26:19,540 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8809523809523809 [2021-08-13 18:26:19,541 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 74 transitions. [2021-08-13 18:26:19,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 74 transitions. [2021-08-13 18:26:19,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:19,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 74 transitions. [2021-08-13 18:26:19,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:19,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:19,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:19,552 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2021-08-13 18:26:19,552 INFO L482 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 72 flow [2021-08-13 18:26:19,553 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:19,553 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:19,553 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:19,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 18:26:19,553 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:19,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:19,555 INFO L82 PathProgramCache]: Analyzing trace with hash -495335353, now seen corresponding path program 1 times [2021-08-13 18:26:19,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:19,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774171143] [2021-08-13 18:26:19,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:19,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:19,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:19,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:19,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:19,642 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-08-13 18:26:19,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:26:19,659 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-08-13 18:26:19,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:26:19,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:19,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:19,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:19,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:19,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774171143] [2021-08-13 18:26:19,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774171143] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:19,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:19,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:26:19,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306862011] [2021-08-13 18:26:19,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:26:19,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:19,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:26:19,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:26:19,686 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 28 [2021-08-13 18:26:19,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:19,688 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:19,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 28 [2021-08-13 18:26:19,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:19,825 INFO L129 PetriNetUnfolder]: 73/168 cut-off events. [2021-08-13 18:26:19,825 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2021-08-13 18:26:19,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 168 events. 73/168 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 746 event pairs, 16 based on Foata normal form. 1/120 useless extension candidates. Maximal degree in co-relation 299. Up to 58 conditions per place. [2021-08-13 18:26:19,831 INFO L132 encePairwiseOnDemand]: 24/28 looper letters, 20 selfloop transitions, 3 changer transitions 1/36 dead transitions. [2021-08-13 18:26:19,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 36 transitions, 148 flow [2021-08-13 18:26:19,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:19,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:19,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2021-08-13 18:26:19,834 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-08-13 18:26:19,834 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 105 transitions. [2021-08-13 18:26:19,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 105 transitions. [2021-08-13 18:26:19,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:19,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 105 transitions. [2021-08-13 18:26:19,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:19,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:19,842 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:19,842 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2021-08-13 18:26:19,843 INFO L482 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 148 flow [2021-08-13 18:26:19,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:19,846 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:19,846 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:19,846 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 18:26:19,846 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:19,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:19,847 INFO L82 PathProgramCache]: Analyzing trace with hash 542023409, now seen corresponding path program 2 times [2021-08-13 18:26:19,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:19,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065130135] [2021-08-13 18:26:19,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:19,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:19,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:19,908 INFO L142 QuantifierPusher]: treesize reduction 7, result has 79.4 percent of original size [2021-08-13 18:26:19,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:19,940 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-08-13 18:26:19,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:26:19,961 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-08-13 18:26:19,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:26:19,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:19,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:19,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:19,975 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:19,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065130135] [2021-08-13 18:26:19,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065130135] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:19,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:19,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:26:19,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909362462] [2021-08-13 18:26:19,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:26:19,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:19,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:26:19,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:26:19,979 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 28 [2021-08-13 18:26:19,979 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 36 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:19,979 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:19,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 28 [2021-08-13 18:26:19,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:20,104 INFO L129 PetriNetUnfolder]: 78/203 cut-off events. [2021-08-13 18:26:20,104 INFO L130 PetriNetUnfolder]: For 67/93 co-relation queries the response was YES. [2021-08-13 18:26:20,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 203 events. 78/203 cut-off events. For 67/93 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 972 event pairs, 16 based on Foata normal form. 1/148 useless extension candidates. Maximal degree in co-relation 457. Up to 83 conditions per place. [2021-08-13 18:26:20,106 INFO L132 encePairwiseOnDemand]: 24/28 looper letters, 29 selfloop transitions, 4 changer transitions 5/50 dead transitions. [2021-08-13 18:26:20,106 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 50 transitions, 288 flow [2021-08-13 18:26:20,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:20,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:20,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 102 transitions. [2021-08-13 18:26:20,110 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2021-08-13 18:26:20,110 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 102 transitions. [2021-08-13 18:26:20,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 102 transitions. [2021-08-13 18:26:20,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:20,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 102 transitions. [2021-08-13 18:26:20,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,113 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,113 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2021-08-13 18:26:20,113 INFO L482 AbstractCegarLoop]: Abstraction has has 37 places, 50 transitions, 288 flow [2021-08-13 18:26:20,113 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,113 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:20,113 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:20,114 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 18:26:20,114 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:20,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:20,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1410352725, now seen corresponding path program 3 times [2021-08-13 18:26:20,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:20,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881983745] [2021-08-13 18:26:20,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:20,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,160 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-08-13 18:26:20,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:20,181 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-08-13 18:26:20,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:26:20,194 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-08-13 18:26:20,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:26:20,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:20,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:20,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881983745] [2021-08-13 18:26:20,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881983745] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:20,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:20,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:26:20,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428841638] [2021-08-13 18:26:20,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:26:20,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:20,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:26:20,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:26:20,211 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 28 [2021-08-13 18:26:20,211 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 50 transitions, 288 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,211 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:20,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 28 [2021-08-13 18:26:20,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:20,327 INFO L129 PetriNetUnfolder]: 95/303 cut-off events. [2021-08-13 18:26:20,327 INFO L130 PetriNetUnfolder]: For 163/229 co-relation queries the response was YES. [2021-08-13 18:26:20,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 303 events. 95/303 cut-off events. For 163/229 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1892 event pairs, 16 based on Foata normal form. 2/234 useless extension candidates. Maximal degree in co-relation 773. Up to 103 conditions per place. [2021-08-13 18:26:20,330 INFO L132 encePairwiseOnDemand]: 24/28 looper letters, 44 selfloop transitions, 7 changer transitions 7/70 dead transitions. [2021-08-13 18:26:20,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 70 transitions, 536 flow [2021-08-13 18:26:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:20,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:20,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2021-08-13 18:26:20,332 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2021-08-13 18:26:20,332 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 104 transitions. [2021-08-13 18:26:20,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 104 transitions. [2021-08-13 18:26:20,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:20,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 104 transitions. [2021-08-13 18:26:20,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,334 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,334 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2021-08-13 18:26:20,334 INFO L482 AbstractCegarLoop]: Abstraction has has 41 places, 70 transitions, 536 flow [2021-08-13 18:26:20,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,335 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:20,335 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:20,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 18:26:20,335 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:20,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:20,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1892340833, now seen corresponding path program 4 times [2021-08-13 18:26:20,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:20,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925604264] [2021-08-13 18:26:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:20,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:20,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:26:20,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:26:20,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:20,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:20,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925604264] [2021-08-13 18:26:20,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925604264] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:20,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:20,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:26:20,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352078613] [2021-08-13 18:26:20,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:26:20,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:20,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:26:20,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:26:20,382 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 28 [2021-08-13 18:26:20,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 70 transitions, 536 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:20,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 28 [2021-08-13 18:26:20,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:20,466 INFO L129 PetriNetUnfolder]: 95/301 cut-off events. [2021-08-13 18:26:20,466 INFO L130 PetriNetUnfolder]: For 240/370 co-relation queries the response was YES. [2021-08-13 18:26:20,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1010 conditions, 301 events. 95/301 cut-off events. For 240/370 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1875 event pairs, 16 based on Foata normal form. 8/237 useless extension candidates. Maximal degree in co-relation 911. Up to 103 conditions per place. [2021-08-13 18:26:20,468 INFO L132 encePairwiseOnDemand]: 24/28 looper letters, 42 selfloop transitions, 8 changer transitions 7/69 dead transitions. [2021-08-13 18:26:20,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 69 transitions, 640 flow [2021-08-13 18:26:20,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:20,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2021-08-13 18:26:20,469 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-08-13 18:26:20,470 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 105 transitions. [2021-08-13 18:26:20,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 105 transitions. [2021-08-13 18:26:20,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:20,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 105 transitions. [2021-08-13 18:26:20,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,471 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,471 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 18 predicate places. [2021-08-13 18:26:20,471 INFO L482 AbstractCegarLoop]: Abstraction has has 45 places, 69 transitions, 640 flow [2021-08-13 18:26:20,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,471 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:20,471 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:20,471 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 18:26:20,471 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:20,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:20,472 INFO L82 PathProgramCache]: Analyzing trace with hash 525785187, now seen corresponding path program 5 times [2021-08-13 18:26:20,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:20,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625217839] [2021-08-13 18:26:20,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:20,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,493 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-08-13 18:26:20,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:20,525 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-08-13 18:26:20,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:26:20,545 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-08-13 18:26:20,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:26:20,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:20,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:20,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625217839] [2021-08-13 18:26:20,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625217839] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:20,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:20,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:26:20,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135634685] [2021-08-13 18:26:20,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:26:20,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:20,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:26:20,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:26:20,561 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 28 [2021-08-13 18:26:20,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 69 transitions, 640 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:20,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 28 [2021-08-13 18:26:20,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:20,652 INFO L129 PetriNetUnfolder]: 95/299 cut-off events. [2021-08-13 18:26:20,652 INFO L130 PetriNetUnfolder]: For 252/278 co-relation queries the response was YES. [2021-08-13 18:26:20,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 299 events. 95/299 cut-off events. For 252/278 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1867 event pairs, 16 based on Foata normal form. 1/230 useless extension candidates. Maximal degree in co-relation 1049. Up to 103 conditions per place. [2021-08-13 18:26:20,656 INFO L132 encePairwiseOnDemand]: 24/28 looper letters, 41 selfloop transitions, 6 changer transitions 9/68 dead transitions. [2021-08-13 18:26:20,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 68 transitions, 740 flow [2021-08-13 18:26:20,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:20,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 101 transitions. [2021-08-13 18:26:20,657 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7214285714285714 [2021-08-13 18:26:20,657 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 101 transitions. [2021-08-13 18:26:20,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 101 transitions. [2021-08-13 18:26:20,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:20,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 101 transitions. [2021-08-13 18:26:20,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,658 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,658 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 22 predicate places. [2021-08-13 18:26:20,658 INFO L482 AbstractCegarLoop]: Abstraction has has 49 places, 68 transitions, 740 flow [2021-08-13 18:26:20,658 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,658 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:20,658 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:20,658 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 18:26:20,659 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:20,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:20,659 INFO L82 PathProgramCache]: Analyzing trace with hash -132295135, now seen corresponding path program 6 times [2021-08-13 18:26:20,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:20,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046528340] [2021-08-13 18:26:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:20,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,700 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-08-13 18:26:20,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:20,717 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-08-13 18:26:20,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:26:20,729 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-08-13 18:26:20,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:26:20,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:20,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:20,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046528340] [2021-08-13 18:26:20,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046528340] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:20,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:20,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:26:20,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003795430] [2021-08-13 18:26:20,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:26:20,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:20,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:26:20,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:26:20,744 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 28 [2021-08-13 18:26:20,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 68 transitions, 740 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:20,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 28 [2021-08-13 18:26:20,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:20,847 INFO L129 PetriNetUnfolder]: 95/297 cut-off events. [2021-08-13 18:26:20,847 INFO L130 PetriNetUnfolder]: For 314/356 co-relation queries the response was YES. [2021-08-13 18:26:20,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 297 events. 95/297 cut-off events. For 314/356 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1850 event pairs, 16 based on Foata normal form. 1/228 useless extension candidates. Maximal degree in co-relation 1187. Up to 103 conditions per place. [2021-08-13 18:26:20,849 INFO L132 encePairwiseOnDemand]: 24/28 looper letters, 40 selfloop transitions, 6 changer transitions 9/67 dead transitions. [2021-08-13 18:26:20,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 67 transitions, 836 flow [2021-08-13 18:26:20,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:20,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:20,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2021-08-13 18:26:20,858 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2021-08-13 18:26:20,858 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 104 transitions. [2021-08-13 18:26:20,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 104 transitions. [2021-08-13 18:26:20,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:20,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 104 transitions. [2021-08-13 18:26:20,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,859 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,859 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 26 predicate places. [2021-08-13 18:26:20,859 INFO L482 AbstractCegarLoop]: Abstraction has has 53 places, 67 transitions, 836 flow [2021-08-13 18:26:20,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,859 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:20,859 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:20,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 18:26:20,859 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:20,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:20,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1153422963, now seen corresponding path program 1 times [2021-08-13 18:26:20,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:20,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305197608] [2021-08-13 18:26:20,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:20,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:26:20,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:26:20,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:20,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:20,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305197608] [2021-08-13 18:26:20,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305197608] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:20,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:20,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 18:26:20,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637258468] [2021-08-13 18:26:20,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 18:26:20,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:20,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 18:26:20,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-13 18:26:20,878 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 28 [2021-08-13 18:26:20,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 67 transitions, 836 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:20,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 28 [2021-08-13 18:26:20,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:20,944 INFO L129 PetriNetUnfolder]: 91/289 cut-off events. [2021-08-13 18:26:20,944 INFO L130 PetriNetUnfolder]: For 476/679 co-relation queries the response was YES. [2021-08-13 18:26:20,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1405 conditions, 289 events. 91/289 cut-off events. For 476/679 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1705 event pairs, 6 based on Foata normal form. 6/219 useless extension candidates. Maximal degree in co-relation 1285. Up to 110 conditions per place. [2021-08-13 18:26:20,947 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 18 selfloop transitions, 18 changer transitions 13/86 dead transitions. [2021-08-13 18:26:20,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 86 transitions, 1208 flow [2021-08-13 18:26:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:20,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 125 transitions. [2021-08-13 18:26:20,951 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2021-08-13 18:26:20,951 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 125 transitions. [2021-08-13 18:26:20,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 125 transitions. [2021-08-13 18:26:20,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:20,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 125 transitions. [2021-08-13 18:26:20,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 25.0) internal successors, (125), 5 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) [2021-08-13 18:26:20,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,952 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:20,952 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 30 predicate places. [2021-08-13 18:26:20,952 INFO L482 AbstractCegarLoop]: Abstraction has has 57 places, 86 transitions, 1208 flow [2021-08-13 18:26:20,953 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,953 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:20,953 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:20,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 18:26:20,953 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:20,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:20,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1532567260, now seen corresponding path program 1 times [2021-08-13 18:26:20,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:20,954 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870454433] [2021-08-13 18:26:20,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:20,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:26:20,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:26:20,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:20,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:20,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:20,974 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:20,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870454433] [2021-08-13 18:26:20,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870454433] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:20,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:20,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 18:26:20,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705354585] [2021-08-13 18:26:20,975 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 18:26:20,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:20,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 18:26:20,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-13 18:26:20,975 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 28 [2021-08-13 18:26:20,976 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 86 transitions, 1208 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:20,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:20,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 28 [2021-08-13 18:26:20,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:21,032 INFO L129 PetriNetUnfolder]: 88/280 cut-off events. [2021-08-13 18:26:21,032 INFO L130 PetriNetUnfolder]: For 544/772 co-relation queries the response was YES. [2021-08-13 18:26:21,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1439 conditions, 280 events. 88/280 cut-off events. For 544/772 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1655 event pairs, 6 based on Foata normal form. 8/216 useless extension candidates. Maximal degree in co-relation 1329. Up to 109 conditions per place. [2021-08-13 18:26:21,036 INFO L132 encePairwiseOnDemand]: 23/28 looper letters, 17 selfloop transitions, 14 changer transitions 15/83 dead transitions. [2021-08-13 18:26:21,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 83 transitions, 1252 flow [2021-08-13 18:26:21,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:21,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 123 transitions. [2021-08-13 18:26:21,038 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8785714285714286 [2021-08-13 18:26:21,038 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 123 transitions. [2021-08-13 18:26:21,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 123 transitions. [2021-08-13 18:26:21,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:21,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 123 transitions. [2021-08-13 18:26:21,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.6) internal successors, (123), 5 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) [2021-08-13 18:26:21,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,039 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,039 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 34 predicate places. [2021-08-13 18:26:21,039 INFO L482 AbstractCegarLoop]: Abstraction has has 61 places, 83 transitions, 1252 flow [2021-08-13 18:26:21,040 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,040 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:21,040 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:21,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 18:26:21,040 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:21,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:21,041 INFO L82 PathProgramCache]: Analyzing trace with hash 833488633, now seen corresponding path program 2 times [2021-08-13 18:26:21,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:21,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520462415] [2021-08-13 18:26:21,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:21,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:26:21,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:26:21,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:21,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:21,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520462415] [2021-08-13 18:26:21,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520462415] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:21,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:21,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 18:26:21,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829728964] [2021-08-13 18:26:21,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 18:26:21,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:21,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 18:26:21,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-13 18:26:21,060 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 28 [2021-08-13 18:26:21,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 83 transitions, 1252 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:21,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 28 [2021-08-13 18:26:21,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:21,118 INFO L129 PetriNetUnfolder]: 96/289 cut-off events. [2021-08-13 18:26:21,118 INFO L130 PetriNetUnfolder]: For 641/876 co-relation queries the response was YES. [2021-08-13 18:26:21,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1590 conditions, 289 events. 96/289 cut-off events. For 641/876 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1691 event pairs, 10 based on Foata normal form. 8/224 useless extension candidates. Maximal degree in co-relation 1499. Up to 124 conditions per place. [2021-08-13 18:26:21,121 INFO L132 encePairwiseOnDemand]: 23/28 looper letters, 15 selfloop transitions, 15 changer transitions 15/76 dead transitions. [2021-08-13 18:26:21,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 76 transitions, 1236 flow [2021-08-13 18:26:21,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:21,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:21,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2021-08-13 18:26:21,122 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2021-08-13 18:26:21,122 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 124 transitions. [2021-08-13 18:26:21,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 124 transitions. [2021-08-13 18:26:21,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:21,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 124 transitions. [2021-08-13 18:26:21,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.8) internal successors, (124), 5 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) [2021-08-13 18:26:21,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,123 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,123 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 38 predicate places. [2021-08-13 18:26:21,123 INFO L482 AbstractCegarLoop]: Abstraction has has 65 places, 76 transitions, 1236 flow [2021-08-13 18:26:21,124 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,124 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:21,124 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:21,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 18:26:21,124 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:21,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:21,124 INFO L82 PathProgramCache]: Analyzing trace with hash 699110087, now seen corresponding path program 3 times [2021-08-13 18:26:21,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:21,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790930830] [2021-08-13 18:26:21,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:21,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:26:21,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:26:21,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:21,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:21,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790930830] [2021-08-13 18:26:21,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790930830] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:21,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:21,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 18:26:21,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181294793] [2021-08-13 18:26:21,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 18:26:21,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:21,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 18:26:21,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-13 18:26:21,148 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 28 [2021-08-13 18:26:21,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 76 transitions, 1236 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:21,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 28 [2021-08-13 18:26:21,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:21,194 INFO L129 PetriNetUnfolder]: 92/279 cut-off events. [2021-08-13 18:26:21,194 INFO L130 PetriNetUnfolder]: For 844/1112 co-relation queries the response was YES. [2021-08-13 18:26:21,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1628 conditions, 279 events. 92/279 cut-off events. For 844/1112 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1609 event pairs, 8 based on Foata normal form. 10/224 useless extension candidates. Maximal degree in co-relation 1538. Up to 114 conditions per place. [2021-08-13 18:26:21,197 INFO L132 encePairwiseOnDemand]: 23/28 looper letters, 23 selfloop transitions, 6 changer transitions 28/88 dead transitions. [2021-08-13 18:26:21,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 88 transitions, 1592 flow [2021-08-13 18:26:21,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:21,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:21,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 123 transitions. [2021-08-13 18:26:21,198 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8785714285714286 [2021-08-13 18:26:21,198 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 123 transitions. [2021-08-13 18:26:21,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 123 transitions. [2021-08-13 18:26:21,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:21,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 123 transitions. [2021-08-13 18:26:21,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.6) internal successors, (123), 5 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) [2021-08-13 18:26:21,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,199 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,199 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 42 predicate places. [2021-08-13 18:26:21,199 INFO L482 AbstractCegarLoop]: Abstraction has has 69 places, 88 transitions, 1592 flow [2021-08-13 18:26:21,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,200 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:21,200 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:21,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 18:26:21,200 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:21,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:21,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1613652794, now seen corresponding path program 2 times [2021-08-13 18:26:21,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:21,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187850779] [2021-08-13 18:26:21,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:21,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:26:21,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:26:21,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:21,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:21,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187850779] [2021-08-13 18:26:21,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187850779] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:21,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:21,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 18:26:21,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095952748] [2021-08-13 18:26:21,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 18:26:21,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:21,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 18:26:21,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-13 18:26:21,276 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 28 [2021-08-13 18:26:21,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 88 transitions, 1592 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:21,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 28 [2021-08-13 18:26:21,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:21,326 INFO L129 PetriNetUnfolder]: 91/274 cut-off events. [2021-08-13 18:26:21,326 INFO L130 PetriNetUnfolder]: For 810/881 co-relation queries the response was YES. [2021-08-13 18:26:21,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1677 conditions, 274 events. 91/274 cut-off events. For 810/881 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1582 event pairs, 8 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 1597. Up to 114 conditions per place. [2021-08-13 18:26:21,329 INFO L132 encePairwiseOnDemand]: 24/28 looper letters, 17 selfloop transitions, 9 changer transitions 30/87 dead transitions. [2021-08-13 18:26:21,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 87 transitions, 1682 flow [2021-08-13 18:26:21,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:21,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:21,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2021-08-13 18:26:21,330 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2021-08-13 18:26:21,330 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 124 transitions. [2021-08-13 18:26:21,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 124 transitions. [2021-08-13 18:26:21,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:21,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 124 transitions. [2021-08-13 18:26:21,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.8) internal successors, (124), 5 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) [2021-08-13 18:26:21,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,331 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,331 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 46 predicate places. [2021-08-13 18:26:21,331 INFO L482 AbstractCegarLoop]: Abstraction has has 73 places, 87 transitions, 1682 flow [2021-08-13 18:26:21,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,331 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:21,331 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:21,331 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 18:26:21,331 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:21,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:21,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1088710238, now seen corresponding path program 3 times [2021-08-13 18:26:21,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:21,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947559137] [2021-08-13 18:26:21,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:21,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:26:21,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:26:21,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:21,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:21,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947559137] [2021-08-13 18:26:21,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947559137] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:21,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:21,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 18:26:21,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713376421] [2021-08-13 18:26:21,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 18:26:21,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:21,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 18:26:21,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-13 18:26:21,361 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 28 [2021-08-13 18:26:21,361 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 87 transitions, 1682 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:21,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 28 [2021-08-13 18:26:21,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:21,407 INFO L129 PetriNetUnfolder]: 95/288 cut-off events. [2021-08-13 18:26:21,407 INFO L130 PetriNetUnfolder]: For 1014/1107 co-relation queries the response was YES. [2021-08-13 18:26:21,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1850 conditions, 288 events. 95/288 cut-off events. For 1014/1107 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1700 event pairs, 9 based on Foata normal form. 7/231 useless extension candidates. Maximal degree in co-relation 1769. Up to 118 conditions per place. [2021-08-13 18:26:21,409 INFO L132 encePairwiseOnDemand]: 23/28 looper letters, 21 selfloop transitions, 3 changer transitions 34/89 dead transitions. [2021-08-13 18:26:21,410 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 89 transitions, 1848 flow [2021-08-13 18:26:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:21,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 125 transitions. [2021-08-13 18:26:21,410 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2021-08-13 18:26:21,410 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 125 transitions. [2021-08-13 18:26:21,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 125 transitions. [2021-08-13 18:26:21,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:21,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 125 transitions. [2021-08-13 18:26:21,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 25.0) internal successors, (125), 5 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) [2021-08-13 18:26:21,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,411 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,411 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 50 predicate places. [2021-08-13 18:26:21,412 INFO L482 AbstractCegarLoop]: Abstraction has has 77 places, 89 transitions, 1848 flow [2021-08-13 18:26:21,412 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,412 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:21,412 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:21,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 18:26:21,412 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:21,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:21,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1824343485, now seen corresponding path program 4 times [2021-08-13 18:26:21,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:21,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963026908] [2021-08-13 18:26:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:21,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:26:21,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:26:21,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:21,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:21,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963026908] [2021-08-13 18:26:21,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963026908] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:21,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:21,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 18:26:21,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786460346] [2021-08-13 18:26:21,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 18:26:21,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:21,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 18:26:21,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-13 18:26:21,431 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 28 [2021-08-13 18:26:21,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 89 transitions, 1848 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:21,431 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 28 [2021-08-13 18:26:21,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:21,477 INFO L129 PetriNetUnfolder]: 93/279 cut-off events. [2021-08-13 18:26:21,477 INFO L130 PetriNetUnfolder]: For 1436/1722 co-relation queries the response was YES. [2021-08-13 18:26:21,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1915 conditions, 279 events. 93/279 cut-off events. For 1436/1722 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1640 event pairs, 10 based on Foata normal form. 10/227 useless extension candidates. Maximal degree in co-relation 1844. Up to 120 conditions per place. [2021-08-13 18:26:21,480 INFO L132 encePairwiseOnDemand]: 24/28 looper letters, 19 selfloop transitions, 2 changer transitions 39/86 dead transitions. [2021-08-13 18:26:21,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 86 transitions, 1920 flow [2021-08-13 18:26:21,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:21,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2021-08-13 18:26:21,481 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2021-08-13 18:26:21,481 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 124 transitions. [2021-08-13 18:26:21,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 124 transitions. [2021-08-13 18:26:21,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:21,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 124 transitions. [2021-08-13 18:26:21,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.8) internal successors, (124), 5 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) [2021-08-13 18:26:21,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,482 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,482 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 54 predicate places. [2021-08-13 18:26:21,482 INFO L482 AbstractCegarLoop]: Abstraction has has 81 places, 86 transitions, 1920 flow [2021-08-13 18:26:21,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,482 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:21,482 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:21,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 18:26:21,482 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:21,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:21,483 INFO L82 PathProgramCache]: Analyzing trace with hash -381212296, now seen corresponding path program 4 times [2021-08-13 18:26:21,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:21,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728863053] [2021-08-13 18:26:21,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:21,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:26:21,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:26:21,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:21,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:21,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728863053] [2021-08-13 18:26:21,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728863053] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:21,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:21,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 18:26:21,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306029418] [2021-08-13 18:26:21,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 18:26:21,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:21,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 18:26:21,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-13 18:26:21,500 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 28 [2021-08-13 18:26:21,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 86 transitions, 1920 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:21,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 28 [2021-08-13 18:26:21,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:21,543 INFO L129 PetriNetUnfolder]: 83/247 cut-off events. [2021-08-13 18:26:21,543 INFO L130 PetriNetUnfolder]: For 1676/2020 co-relation queries the response was YES. [2021-08-13 18:26:21,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1835 conditions, 247 events. 83/247 cut-off events. For 1676/2020 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1432 event pairs, 8 based on Foata normal form. 10/204 useless extension candidates. Maximal degree in co-relation 1776. Up to 105 conditions per place. [2021-08-13 18:26:21,545 INFO L132 encePairwiseOnDemand]: 23/28 looper letters, 14 selfloop transitions, 5 changer transitions 41/81 dead transitions. [2021-08-13 18:26:21,545 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 81 transitions, 1932 flow [2021-08-13 18:26:21,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:26:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:26:21,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 123 transitions. [2021-08-13 18:26:21,546 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8785714285714286 [2021-08-13 18:26:21,546 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 123 transitions. [2021-08-13 18:26:21,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 123 transitions. [2021-08-13 18:26:21,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:21,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 123 transitions. [2021-08-13 18:26:21,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.6) internal successors, (123), 5 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) [2021-08-13 18:26:21,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,548 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2021-08-13 18:26:21,548 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 58 predicate places. [2021-08-13 18:26:21,548 INFO L482 AbstractCegarLoop]: Abstraction has has 85 places, 81 transitions, 1932 flow [2021-08-13 18:26:21,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,548 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:21,548 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:21,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-13 18:26:21,549 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:21,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:21,549 INFO L82 PathProgramCache]: Analyzing trace with hash -976125034, now seen corresponding path program 1 times [2021-08-13 18:26:21,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:21,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420899707] [2021-08-13 18:26:21,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:21,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:21,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:21,593 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:21,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:21,602 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:21,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:21,613 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:21,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:21,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:21,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:21,636 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:21,636 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420899707] [2021-08-13 18:26:21,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420899707] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:21,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:21,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:21,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389464723] [2021-08-13 18:26:21,638 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:21,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:21,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:21,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:21,640 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:21,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 81 transitions, 1932 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:21,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:21,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:21,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:21,870 INFO L129 PetriNetUnfolder]: 228/602 cut-off events. [2021-08-13 18:26:21,870 INFO L130 PetriNetUnfolder]: For 5687/6176 co-relation queries the response was YES. [2021-08-13 18:26:21,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4127 conditions, 602 events. 228/602 cut-off events. For 5687/6176 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4167 event pairs, 32 based on Foata normal form. 12/466 useless extension candidates. Maximal degree in co-relation 4008. Up to 233 conditions per place. [2021-08-13 18:26:21,874 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 40 selfloop transitions, 18 changer transitions 68/136 dead transitions. [2021-08-13 18:26:21,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 136 transitions, 3212 flow [2021-08-13 18:26:21,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 18:26:21,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 18:26:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 179 transitions. [2021-08-13 18:26:21,875 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7103174603174603 [2021-08-13 18:26:21,875 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 179 transitions. [2021-08-13 18:26:21,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 179 transitions. [2021-08-13 18:26:21,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:21,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 179 transitions. [2021-08-13 18:26:21,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 19.88888888888889) internal successors, (179), 9 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,877 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:21,877 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 66 predicate places. [2021-08-13 18:26:21,877 INFO L482 AbstractCegarLoop]: Abstraction has has 93 places, 136 transitions, 3212 flow [2021-08-13 18:26:21,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:21,877 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:21,878 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:21,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-13 18:26:21,878 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:21,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:21,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1934873680, now seen corresponding path program 2 times [2021-08-13 18:26:21,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:21,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193489212] [2021-08-13 18:26:21,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:21,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:21,912 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-08-13 18:26:21,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:26:21,919 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:21,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:21,932 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:21,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:21,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:21,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:21,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:21,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:21,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:21,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193489212] [2021-08-13 18:26:21,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193489212] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:21,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:21,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:21,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768424917] [2021-08-13 18:26:21,969 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:21,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:21,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:21,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:21,969 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:21,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 136 transitions, 3212 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:21,970 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:21,970 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:21,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:22,225 INFO L129 PetriNetUnfolder]: 235/686 cut-off events. [2021-08-13 18:26:22,225 INFO L130 PetriNetUnfolder]: For 6715/7259 co-relation queries the response was YES. [2021-08-13 18:26:22,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4908 conditions, 686 events. 235/686 cut-off events. For 6715/7259 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5177 event pairs, 18 based on Foata normal form. 27/555 useless extension candidates. Maximal degree in co-relation 4737. Up to 258 conditions per place. [2021-08-13 18:26:22,238 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 70 selfloop transitions, 28 changer transitions 79/187 dead transitions. [2021-08-13 18:26:22,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 187 transitions, 4676 flow [2021-08-13 18:26:22,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:22,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2021-08-13 18:26:22,239 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-08-13 18:26:22,239 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 198 transitions. [2021-08-13 18:26:22,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 198 transitions. [2021-08-13 18:26:22,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:22,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 198 transitions. [2021-08-13 18:26:22,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.8) internal successors, (198), 10 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) [2021-08-13 18:26:22,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:22,241 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:22,241 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 75 predicate places. [2021-08-13 18:26:22,241 INFO L482 AbstractCegarLoop]: Abstraction has has 102 places, 187 transitions, 4676 flow [2021-08-13 18:26:22,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:22,241 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:22,241 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:22,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-13 18:26:22,241 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:22,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:22,242 INFO L82 PathProgramCache]: Analyzing trace with hash 416529340, now seen corresponding path program 3 times [2021-08-13 18:26:22,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:22,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419541779] [2021-08-13 18:26:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:22,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:22,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:22,255 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-08-13 18:26:22,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:26:22,261 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:22,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:22,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:26:22,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:22,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:22,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:22,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:22,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:22,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419541779] [2021-08-13 18:26:22,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419541779] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:22,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:22,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:22,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467731014] [2021-08-13 18:26:22,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:22,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:22,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:22,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:22,306 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:22,306 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 187 transitions, 4676 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:22,306 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:22,306 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:22,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:22,580 INFO L129 PetriNetUnfolder]: 233/712 cut-off events. [2021-08-13 18:26:22,580 INFO L130 PetriNetUnfolder]: For 6971/7171 co-relation queries the response was YES. [2021-08-13 18:26:22,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5431 conditions, 712 events. 233/712 cut-off events. For 6971/7171 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5609 event pairs, 18 based on Foata normal form. 25/576 useless extension candidates. Maximal degree in co-relation 5256. Up to 261 conditions per place. [2021-08-13 18:26:22,585 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 72 selfloop transitions, 24 changer transitions 88/194 dead transitions. [2021-08-13 18:26:22,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 194 transitions, 5200 flow [2021-08-13 18:26:22,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:22,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:22,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 213 transitions. [2021-08-13 18:26:22,587 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6915584415584416 [2021-08-13 18:26:22,587 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 213 transitions. [2021-08-13 18:26:22,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 213 transitions. [2021-08-13 18:26:22,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:22,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 213 transitions. [2021-08-13 18:26:22,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.363636363636363) internal successors, (213), 11 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:22,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:22,588 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:22,588 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 85 predicate places. [2021-08-13 18:26:22,588 INFO L482 AbstractCegarLoop]: Abstraction has has 112 places, 194 transitions, 5200 flow [2021-08-13 18:26:22,588 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:22,588 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:22,588 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:22,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-13 18:26:22,589 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:22,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:22,589 INFO L82 PathProgramCache]: Analyzing trace with hash 2001133602, now seen corresponding path program 4 times [2021-08-13 18:26:22,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:22,589 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30039212] [2021-08-13 18:26:22,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:22,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:22,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:22,604 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-08-13 18:26:22,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:26:22,610 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:22,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:22,622 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:22,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:22,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:22,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:22,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:22,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:22,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30039212] [2021-08-13 18:26:22,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30039212] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:22,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:22,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:22,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380519569] [2021-08-13 18:26:22,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:22,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:22,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:22,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:22,657 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:22,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 194 transitions, 5200 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:22,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:22,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:22,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:22,919 INFO L129 PetriNetUnfolder]: 233/704 cut-off events. [2021-08-13 18:26:22,919 INFO L130 PetriNetUnfolder]: For 7686/8328 co-relation queries the response was YES. [2021-08-13 18:26:22,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5840 conditions, 704 events. 233/704 cut-off events. For 7686/8328 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5499 event pairs, 18 based on Foata normal form. 31/574 useless extension candidates. Maximal degree in co-relation 5671. Up to 260 conditions per place. [2021-08-13 18:26:22,924 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 68 selfloop transitions, 26 changer transitions 89/193 dead transitions. [2021-08-13 18:26:22,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 193 transitions, 5544 flow [2021-08-13 18:26:22,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 197 transitions. [2021-08-13 18:26:22,925 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7035714285714286 [2021-08-13 18:26:22,925 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 197 transitions. [2021-08-13 18:26:22,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 197 transitions. [2021-08-13 18:26:22,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:22,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 197 transitions. [2021-08-13 18:26:22,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.7) internal successors, (197), 10 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) [2021-08-13 18:26:22,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:22,927 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:22,927 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 94 predicate places. [2021-08-13 18:26:22,927 INFO L482 AbstractCegarLoop]: Abstraction has has 121 places, 193 transitions, 5544 flow [2021-08-13 18:26:22,927 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:22,927 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:22,927 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:22,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-13 18:26:22,927 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:22,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:22,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1668944584, now seen corresponding path program 5 times [2021-08-13 18:26:22,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:22,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083673812] [2021-08-13 18:26:22,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:22,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:22,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:22,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:22,943 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:26:22,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:22,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:26:22,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:22,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:22,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:22,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:22,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:22,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:22,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083673812] [2021-08-13 18:26:22,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083673812] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:22,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:22,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:22,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314299468] [2021-08-13 18:26:22,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:22,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:22,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:22,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:22,978 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:22,978 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 193 transitions, 5544 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:22,978 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:22,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:22,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:23,241 INFO L129 PetriNetUnfolder]: 277/837 cut-off events. [2021-08-13 18:26:23,241 INFO L130 PetriNetUnfolder]: For 8121/8291 co-relation queries the response was YES. [2021-08-13 18:26:23,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7279 conditions, 837 events. 277/837 cut-off events. For 8121/8291 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 6676 event pairs, 16 based on Foata normal form. 15/655 useless extension candidates. Maximal degree in co-relation 7020. Up to 320 conditions per place. [2021-08-13 18:26:23,249 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 100 selfloop transitions, 57 changer transitions 94/261 dead transitions. [2021-08-13 18:26:23,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 261 transitions, 7512 flow [2021-08-13 18:26:23,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:23,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:23,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 213 transitions. [2021-08-13 18:26:23,250 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6915584415584416 [2021-08-13 18:26:23,250 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 213 transitions. [2021-08-13 18:26:23,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 213 transitions. [2021-08-13 18:26:23,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:23,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 213 transitions. [2021-08-13 18:26:23,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.363636363636363) internal successors, (213), 11 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:23,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:23,253 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:23,253 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 104 predicate places. [2021-08-13 18:26:23,253 INFO L482 AbstractCegarLoop]: Abstraction has has 131 places, 261 transitions, 7512 flow [2021-08-13 18:26:23,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:23,253 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:23,254 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:23,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-13 18:26:23,254 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:23,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:23,254 INFO L82 PathProgramCache]: Analyzing trace with hash -2061340230, now seen corresponding path program 6 times [2021-08-13 18:26:23,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:23,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64596355] [2021-08-13 18:26:23,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:23,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:23,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:23,279 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-08-13 18:26:23,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:26:23,285 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:23,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:23,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:26:23,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:23,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:23,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:23,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:23,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64596355] [2021-08-13 18:26:23,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64596355] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:23,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:23,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:23,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872912078] [2021-08-13 18:26:23,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:23,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:23,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:23,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:23,327 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:23,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 261 transitions, 7512 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:23,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:23,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:23,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:23,572 INFO L129 PetriNetUnfolder]: 291/899 cut-off events. [2021-08-13 18:26:23,572 INFO L130 PetriNetUnfolder]: For 9866/10618 co-relation queries the response was YES. [2021-08-13 18:26:23,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8313 conditions, 899 events. 291/899 cut-off events. For 9866/10618 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 7317 event pairs, 16 based on Foata normal form. 31/718 useless extension candidates. Maximal degree in co-relation 7973. Up to 356 conditions per place. [2021-08-13 18:26:23,581 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 137 selfloop transitions, 51 changer transitions 95/293 dead transitions. [2021-08-13 18:26:23,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 293 transitions, 8886 flow [2021-08-13 18:26:23,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:23,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:23,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 213 transitions. [2021-08-13 18:26:23,582 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6915584415584416 [2021-08-13 18:26:23,582 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 213 transitions. [2021-08-13 18:26:23,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 213 transitions. [2021-08-13 18:26:23,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:23,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 213 transitions. [2021-08-13 18:26:23,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.363636363636363) internal successors, (213), 11 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:23,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:23,583 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:23,584 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 114 predicate places. [2021-08-13 18:26:23,584 INFO L482 AbstractCegarLoop]: Abstraction has has 141 places, 293 transitions, 8886 flow [2021-08-13 18:26:23,584 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:23,584 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:23,584 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:23,584 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-13 18:26:23,584 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:23,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:23,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1823260484, now seen corresponding path program 7 times [2021-08-13 18:26:23,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:23,585 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948938456] [2021-08-13 18:26:23,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:23,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:23,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:23,598 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-08-13 18:26:23,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:26:23,603 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:23,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:23,613 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:23,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:23,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:23,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:23,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:23,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:23,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:23,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948938456] [2021-08-13 18:26:23,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948938456] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:23,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:23,647 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:23,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080138605] [2021-08-13 18:26:23,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:23,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:23,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:23,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:23,648 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:23,648 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 293 transitions, 8886 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:23,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:23,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:23,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:23,954 INFO L129 PetriNetUnfolder]: 290/905 cut-off events. [2021-08-13 18:26:23,954 INFO L130 PetriNetUnfolder]: For 10516/11304 co-relation queries the response was YES. [2021-08-13 18:26:23,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8872 conditions, 905 events. 290/905 cut-off events. For 10516/11304 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7433 event pairs, 16 based on Foata normal form. 31/724 useless extension candidates. Maximal degree in co-relation 8515. Up to 356 conditions per place. [2021-08-13 18:26:23,961 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 138 selfloop transitions, 49 changer transitions 96/293 dead transitions. [2021-08-13 18:26:23,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 293 transitions, 9452 flow [2021-08-13 18:26:23,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2021-08-13 18:26:23,962 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-08-13 18:26:23,962 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 198 transitions. [2021-08-13 18:26:23,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 198 transitions. [2021-08-13 18:26:23,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:23,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 198 transitions. [2021-08-13 18:26:23,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.8) internal successors, (198), 10 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) [2021-08-13 18:26:23,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:23,963 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:23,963 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 123 predicate places. [2021-08-13 18:26:23,963 INFO L482 AbstractCegarLoop]: Abstraction has has 150 places, 293 transitions, 9452 flow [2021-08-13 18:26:23,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:23,963 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:23,964 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:23,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-13 18:26:23,964 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:23,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:23,964 INFO L82 PathProgramCache]: Analyzing trace with hash 955729422, now seen corresponding path program 8 times [2021-08-13 18:26:23,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:23,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064791001] [2021-08-13 18:26:23,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:23,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:23,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:23,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:23,978 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-08-13 18:26:23,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:26:23,983 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:23,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:23,994 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:23,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:24,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:24,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:24,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:24,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:24,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064791001] [2021-08-13 18:26:24,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064791001] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:24,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:24,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:24,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450642157] [2021-08-13 18:26:24,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:24,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:24,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:24,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:24,036 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:24,036 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 293 transitions, 9452 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:24,036 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:24,036 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:24,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:24,348 INFO L129 PetriNetUnfolder]: 290/896 cut-off events. [2021-08-13 18:26:24,349 INFO L130 PetriNetUnfolder]: For 9363/9547 co-relation queries the response was YES. [2021-08-13 18:26:24,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9389 conditions, 896 events. 290/896 cut-off events. For 9363/9547 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 7299 event pairs, 16 based on Foata normal form. 20/704 useless extension candidates. Maximal degree in co-relation 9034. Up to 355 conditions per place. [2021-08-13 18:26:24,355 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 137 selfloop transitions, 48 changer transitions 97/292 dead transitions. [2021-08-13 18:26:24,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 292 transitions, 9986 flow [2021-08-13 18:26:24,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:24,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:24,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 197 transitions. [2021-08-13 18:26:24,356 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7035714285714286 [2021-08-13 18:26:24,356 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 197 transitions. [2021-08-13 18:26:24,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 197 transitions. [2021-08-13 18:26:24,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:24,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 197 transitions. [2021-08-13 18:26:24,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.7) internal successors, (197), 10 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) [2021-08-13 18:26:24,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:24,358 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:24,358 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 132 predicate places. [2021-08-13 18:26:24,358 INFO L482 AbstractCegarLoop]: Abstraction has has 159 places, 292 transitions, 9986 flow [2021-08-13 18:26:24,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:24,358 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:24,358 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:24,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-13 18:26:24,358 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:24,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:24,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1315783338, now seen corresponding path program 9 times [2021-08-13 18:26:24,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:24,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078510123] [2021-08-13 18:26:24,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:24,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:24,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:24,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:24,376 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:24,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:24,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:26:24,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:24,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:24,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:24,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:24,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078510123] [2021-08-13 18:26:24,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078510123] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:24,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:24,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:24,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252930144] [2021-08-13 18:26:24,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:24,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:24,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:24,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:24,434 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:24,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 292 transitions, 9986 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:24,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:24,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:24,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:24,745 INFO L129 PetriNetUnfolder]: 289/938 cut-off events. [2021-08-13 18:26:24,746 INFO L130 PetriNetUnfolder]: For 10807/11033 co-relation queries the response was YES. [2021-08-13 18:26:24,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10157 conditions, 938 events. 289/938 cut-off events. For 10807/11033 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7888 event pairs, 18 based on Foata normal form. 20/743 useless extension candidates. Maximal degree in co-relation 9726. Up to 365 conditions per place. [2021-08-13 18:26:24,755 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 132 selfloop transitions, 62 changer transitions 98/302 dead transitions. [2021-08-13 18:26:24,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 302 transitions, 10892 flow [2021-08-13 18:26:24,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:24,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:24,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 214 transitions. [2021-08-13 18:26:24,757 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6948051948051948 [2021-08-13 18:26:24,757 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 214 transitions. [2021-08-13 18:26:24,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 214 transitions. [2021-08-13 18:26:24,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:24,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 214 transitions. [2021-08-13 18:26:24,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:24,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:24,758 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:24,758 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 142 predicate places. [2021-08-13 18:26:24,758 INFO L482 AbstractCegarLoop]: Abstraction has has 169 places, 302 transitions, 10892 flow [2021-08-13 18:26:24,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:24,758 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:24,759 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:24,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-13 18:26:24,759 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:24,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:24,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1089740488, now seen corresponding path program 10 times [2021-08-13 18:26:24,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:24,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334452969] [2021-08-13 18:26:24,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:24,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:24,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:24,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:24,778 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:24,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:24,786 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:24,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:24,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:24,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:24,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:24,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:24,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:24,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:24,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334452969] [2021-08-13 18:26:24,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334452969] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:24,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:24,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:24,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205007123] [2021-08-13 18:26:24,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:24,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:24,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:24,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:24,818 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:24,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 302 transitions, 10892 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:24,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:24,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:24,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:25,083 INFO L129 PetriNetUnfolder]: 289/938 cut-off events. [2021-08-13 18:26:25,084 INFO L130 PetriNetUnfolder]: For 11218/11458 co-relation queries the response was YES. [2021-08-13 18:26:25,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10697 conditions, 938 events. 289/938 cut-off events. For 11218/11458 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7907 event pairs, 18 based on Foata normal form. 20/743 useless extension candidates. Maximal degree in co-relation 10268. Up to 364 conditions per place. [2021-08-13 18:26:25,127 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 121 selfloop transitions, 71 changer transitions 99/301 dead transitions. [2021-08-13 18:26:25,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 301 transitions, 11440 flow [2021-08-13 18:26:25,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:25,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:25,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 197 transitions. [2021-08-13 18:26:25,128 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7035714285714286 [2021-08-13 18:26:25,128 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 197 transitions. [2021-08-13 18:26:25,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 197 transitions. [2021-08-13 18:26:25,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:25,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 197 transitions. [2021-08-13 18:26:25,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.7) internal successors, (197), 10 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) [2021-08-13 18:26:25,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:25,129 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:25,129 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 151 predicate places. [2021-08-13 18:26:25,129 INFO L482 AbstractCegarLoop]: Abstraction has has 178 places, 301 transitions, 11440 flow [2021-08-13 18:26:25,130 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:25,130 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:25,130 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:25,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-13 18:26:25,130 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:25,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:25,130 INFO L82 PathProgramCache]: Analyzing trace with hash 717746166, now seen corresponding path program 11 times [2021-08-13 18:26:25,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:25,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817577461] [2021-08-13 18:26:25,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:25,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:25,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:25,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:25,147 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:25,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:25,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:26:25,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:25,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:25,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:25,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:25,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817577461] [2021-08-13 18:26:25,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817577461] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:25,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:25,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:25,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673466443] [2021-08-13 18:26:25,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:25,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:25,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:25,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:25,191 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:25,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 301 transitions, 11440 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:25,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:25,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:25,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:25,432 INFO L129 PetriNetUnfolder]: 289/937 cut-off events. [2021-08-13 18:26:25,432 INFO L130 PetriNetUnfolder]: For 11628/11876 co-relation queries the response was YES. [2021-08-13 18:26:25,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11235 conditions, 937 events. 289/937 cut-off events. For 11628/11876 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7930 event pairs, 18 based on Foata normal form. 20/742 useless extension candidates. Maximal degree in co-relation 10810. Up to 363 conditions per place. [2021-08-13 18:26:25,438 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 123 selfloop transitions, 67 changer transitions 100/300 dead transitions. [2021-08-13 18:26:25,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 300 transitions, 11984 flow [2021-08-13 18:26:25,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:25,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:25,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 213 transitions. [2021-08-13 18:26:25,439 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6915584415584416 [2021-08-13 18:26:25,439 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 213 transitions. [2021-08-13 18:26:25,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 213 transitions. [2021-08-13 18:26:25,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:25,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 213 transitions. [2021-08-13 18:26:25,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.363636363636363) internal successors, (213), 11 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:25,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:25,440 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:25,441 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 161 predicate places. [2021-08-13 18:26:25,441 INFO L482 AbstractCegarLoop]: Abstraction has has 188 places, 300 transitions, 11984 flow [2021-08-13 18:26:25,441 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:25,441 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:25,441 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:25,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-08-13 18:26:25,441 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:25,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:25,441 INFO L82 PathProgramCache]: Analyzing trace with hash -627476814, now seen corresponding path program 12 times [2021-08-13 18:26:25,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:25,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495062519] [2021-08-13 18:26:25,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:25,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:25,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:25,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:25,466 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:25,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:25,478 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:25,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:25,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:25,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:25,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:25,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:25,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:25,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495062519] [2021-08-13 18:26:25,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495062519] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:25,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:25,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:25,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799651000] [2021-08-13 18:26:25,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:25,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:25,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:25,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:25,513 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:25,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 300 transitions, 11984 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:25,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:25,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:25,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:25,855 INFO L129 PetriNetUnfolder]: 288/926 cut-off events. [2021-08-13 18:26:25,855 INFO L130 PetriNetUnfolder]: For 13483/14533 co-relation queries the response was YES. [2021-08-13 18:26:25,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11773 conditions, 926 events. 288/926 cut-off events. For 13483/14533 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 7718 event pairs, 18 based on Foata normal form. 24/735 useless extension candidates. Maximal degree in co-relation 11331. Up to 363 conditions per place. [2021-08-13 18:26:25,864 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 126 selfloop transitions, 63 changer transitions 101/300 dead transitions. [2021-08-13 18:26:25,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 300 transitions, 12564 flow [2021-08-13 18:26:25,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:25,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:25,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2021-08-13 18:26:25,866 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-08-13 18:26:25,866 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 198 transitions. [2021-08-13 18:26:25,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 198 transitions. [2021-08-13 18:26:25,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:25,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 198 transitions. [2021-08-13 18:26:25,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.8) internal successors, (198), 10 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) [2021-08-13 18:26:25,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:25,867 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:25,867 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 170 predicate places. [2021-08-13 18:26:25,867 INFO L482 AbstractCegarLoop]: Abstraction has has 197 places, 300 transitions, 12564 flow [2021-08-13 18:26:25,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:25,867 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:25,867 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:25,867 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-08-13 18:26:25,867 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:25,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:25,868 INFO L82 PathProgramCache]: Analyzing trace with hash -126011258, now seen corresponding path program 13 times [2021-08-13 18:26:25,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:25,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715211473] [2021-08-13 18:26:25,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:25,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:25,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:25,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:25,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:25,892 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:25,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:25,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:25,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:25,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:25,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:25,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:25,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:25,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715211473] [2021-08-13 18:26:25,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715211473] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:25,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:25,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:25,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049300381] [2021-08-13 18:26:25,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:25,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:25,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:25,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:25,930 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:25,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 300 transitions, 12564 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:25,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:25,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:25,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:26,264 INFO L129 PetriNetUnfolder]: 302/1000 cut-off events. [2021-08-13 18:26:26,264 INFO L130 PetriNetUnfolder]: For 12919/13008 co-relation queries the response was YES. [2021-08-13 18:26:26,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12996 conditions, 1000 events. 302/1000 cut-off events. For 12919/13008 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 8554 event pairs, 12 based on Foata normal form. 12/783 useless extension candidates. Maximal degree in co-relation 12441. Up to 387 conditions per place. [2021-08-13 18:26:26,272 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 135 selfloop transitions, 85 changer transitions 102/332 dead transitions. [2021-08-13 18:26:26,272 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 332 transitions, 14352 flow [2021-08-13 18:26:26,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:26,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:26,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 200 transitions. [2021-08-13 18:26:26,273 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2021-08-13 18:26:26,273 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 200 transitions. [2021-08-13 18:26:26,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 200 transitions. [2021-08-13 18:26:26,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:26,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 200 transitions. [2021-08-13 18:26:26,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 20.0) internal successors, (200), 10 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:26,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:26,274 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:26,274 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 179 predicate places. [2021-08-13 18:26:26,274 INFO L482 AbstractCegarLoop]: Abstraction has has 206 places, 332 transitions, 14352 flow [2021-08-13 18:26:26,274 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:26,274 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:26,274 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:26,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-08-13 18:26:26,274 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:26,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:26,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1300459720, now seen corresponding path program 14 times [2021-08-13 18:26:26,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:26,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443133040] [2021-08-13 18:26:26,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:26,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:26,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:26,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:26,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:26,297 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:26,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:26,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:26,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:26,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:26,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:26,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443133040] [2021-08-13 18:26:26,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443133040] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:26,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:26,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:26,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848795361] [2021-08-13 18:26:26,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:26,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:26,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:26,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:26,330 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:26,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 332 transitions, 14352 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:26,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:26,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:26,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:26,624 INFO L129 PetriNetUnfolder]: 302/991 cut-off events. [2021-08-13 18:26:26,625 INFO L130 PetriNetUnfolder]: For 16344/17498 co-relation queries the response was YES. [2021-08-13 18:26:26,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13550 conditions, 991 events. 302/991 cut-off events. For 16344/17498 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 8459 event pairs, 16 based on Foata normal form. 24/786 useless extension candidates. Maximal degree in co-relation 12999. Up to 386 conditions per place. [2021-08-13 18:26:26,632 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 134 selfloop transitions, 84 changer transitions 103/331 dead transitions. [2021-08-13 18:26:26,632 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 331 transitions, 14952 flow [2021-08-13 18:26:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:26,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:26,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 200 transitions. [2021-08-13 18:26:26,633 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2021-08-13 18:26:26,633 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 200 transitions. [2021-08-13 18:26:26,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 200 transitions. [2021-08-13 18:26:26,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:26,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 200 transitions. [2021-08-13 18:26:26,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 20.0) internal successors, (200), 10 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:26,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:26,634 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:26,634 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 188 predicate places. [2021-08-13 18:26:26,634 INFO L482 AbstractCegarLoop]: Abstraction has has 215 places, 331 transitions, 14952 flow [2021-08-13 18:26:26,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:26,634 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:26,634 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:26,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-08-13 18:26:26,634 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:26,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:26,635 INFO L82 PathProgramCache]: Analyzing trace with hash -92247012, now seen corresponding path program 15 times [2021-08-13 18:26:26,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:26,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103551517] [2021-08-13 18:26:26,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:26,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:26,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:26,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:26,668 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:26,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:26,679 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:26,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:26,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:26,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:26,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:26,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:26,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:26,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103551517] [2021-08-13 18:26:26,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103551517] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:26,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:26,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:26,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733036758] [2021-08-13 18:26:26,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:26,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:26,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:26,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:26,712 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:26,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 331 transitions, 14952 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:26,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:26,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:26,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:27,035 INFO L129 PetriNetUnfolder]: 302/992 cut-off events. [2021-08-13 18:26:27,035 INFO L130 PetriNetUnfolder]: For 14405/14685 co-relation queries the response was YES. [2021-08-13 18:26:27,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14113 conditions, 992 events. 302/992 cut-off events. For 14405/14685 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 8443 event pairs, 18 based on Foata normal form. 20/783 useless extension candidates. Maximal degree in co-relation 13568. Up to 385 conditions per place. [2021-08-13 18:26:27,042 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 141 selfloop transitions, 75 changer transitions 104/330 dead transitions. [2021-08-13 18:26:27,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 330 transitions, 15548 flow [2021-08-13 18:26:27,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:27,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 197 transitions. [2021-08-13 18:26:27,044 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7035714285714286 [2021-08-13 18:26:27,044 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 197 transitions. [2021-08-13 18:26:27,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 197 transitions. [2021-08-13 18:26:27,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:27,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 197 transitions. [2021-08-13 18:26:27,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.7) internal successors, (197), 10 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) [2021-08-13 18:26:27,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:27,045 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:27,045 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 197 predicate places. [2021-08-13 18:26:27,045 INFO L482 AbstractCegarLoop]: Abstraction has has 224 places, 330 transitions, 15548 flow [2021-08-13 18:26:27,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:27,045 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:27,045 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:27,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-08-13 18:26:27,045 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:27,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:27,045 INFO L82 PathProgramCache]: Analyzing trace with hash 2034836604, now seen corresponding path program 16 times [2021-08-13 18:26:27,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:27,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226221086] [2021-08-13 18:26:27,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:27,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:27,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:27,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:27,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:27,068 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:26:27,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:27,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:27,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:27,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:27,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:27,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:27,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226221086] [2021-08-13 18:26:27,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226221086] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:27,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:27,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:27,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564812967] [2021-08-13 18:26:27,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:27,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:27,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:27,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:27,095 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:27,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 330 transitions, 15548 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:27,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:27,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:27,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:27,363 INFO L129 PetriNetUnfolder]: 302/993 cut-off events. [2021-08-13 18:26:27,363 INFO L130 PetriNetUnfolder]: For 14184/14273 co-relation queries the response was YES. [2021-08-13 18:26:27,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14682 conditions, 993 events. 302/993 cut-off events. For 14184/14273 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 8491 event pairs, 8 based on Foata normal form. 12/776 useless extension candidates. Maximal degree in co-relation 14145. Up to 384 conditions per place. [2021-08-13 18:26:27,369 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 128 selfloop transitions, 86 changer transitions 105/329 dead transitions. [2021-08-13 18:26:27,369 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 329 transitions, 16140 flow [2021-08-13 18:26:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:27,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:27,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 199 transitions. [2021-08-13 18:26:27,374 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7107142857142857 [2021-08-13 18:26:27,374 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 199 transitions. [2021-08-13 18:26:27,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 199 transitions. [2021-08-13 18:26:27,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:27,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 199 transitions. [2021-08-13 18:26:27,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.9) internal successors, (199), 10 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:27,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:27,376 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:27,376 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 206 predicate places. [2021-08-13 18:26:27,376 INFO L482 AbstractCegarLoop]: Abstraction has has 233 places, 329 transitions, 16140 flow [2021-08-13 18:26:27,376 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:27,376 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:27,376 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:27,377 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-08-13 18:26:27,377 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:27,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:27,377 INFO L82 PathProgramCache]: Analyzing trace with hash 468862890, now seen corresponding path program 17 times [2021-08-13 18:26:27,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:27,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405701793] [2021-08-13 18:26:27,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:27,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:27,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:27,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:27,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:27,402 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:26:27,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:27,412 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:27,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:27,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:27,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:27,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:27,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:27,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405701793] [2021-08-13 18:26:27,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405701793] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:27,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:27,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:27,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281960919] [2021-08-13 18:26:27,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:27,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:27,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:27,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:27,435 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:27,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 329 transitions, 16140 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:27,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:27,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:27,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:27,709 INFO L129 PetriNetUnfolder]: 302/999 cut-off events. [2021-08-13 18:26:27,709 INFO L130 PetriNetUnfolder]: For 14525/14614 co-relation queries the response was YES. [2021-08-13 18:26:27,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15309 conditions, 999 events. 302/999 cut-off events. For 14525/14614 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 8569 event pairs, 15 based on Foata normal form. 12/781 useless extension candidates. Maximal degree in co-relation 14754. Up to 384 conditions per place. [2021-08-13 18:26:27,717 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 129 selfloop transitions, 86 changer transitions 106/331 dead transitions. [2021-08-13 18:26:27,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 331 transitions, 16854 flow [2021-08-13 18:26:27,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 18:26:27,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 18:26:27,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 180 transitions. [2021-08-13 18:26:27,718 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2021-08-13 18:26:27,718 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 180 transitions. [2021-08-13 18:26:27,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 180 transitions. [2021-08-13 18:26:27,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:27,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 180 transitions. [2021-08-13 18:26:27,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 20.0) internal successors, (180), 9 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:27,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:27,719 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:27,719 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 214 predicate places. [2021-08-13 18:26:27,719 INFO L482 AbstractCegarLoop]: Abstraction has has 241 places, 331 transitions, 16854 flow [2021-08-13 18:26:27,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:27,719 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:27,719 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:27,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-08-13 18:26:27,719 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:27,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:27,719 INFO L82 PathProgramCache]: Analyzing trace with hash -9158570, now seen corresponding path program 18 times [2021-08-13 18:26:27,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:27,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769583792] [2021-08-13 18:26:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:27,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:27,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:27,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:27,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:27,742 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:27,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:27,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:27,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:27,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:27,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:27,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:27,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:27,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769583792] [2021-08-13 18:26:27,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769583792] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:27,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:27,768 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:27,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784888543] [2021-08-13 18:26:27,768 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:27,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:27,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:27,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:27,768 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:27,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 331 transitions, 16854 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:27,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:27,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:27,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:28,071 INFO L129 PetriNetUnfolder]: 302/997 cut-off events. [2021-08-13 18:26:28,071 INFO L130 PetriNetUnfolder]: For 14849/14938 co-relation queries the response was YES. [2021-08-13 18:26:28,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15868 conditions, 997 events. 302/997 cut-off events. For 14849/14938 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 8543 event pairs, 15 based on Foata normal form. 12/779 useless extension candidates. Maximal degree in co-relation 15324. Up to 383 conditions per place. [2021-08-13 18:26:28,078 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 128 selfloop transitions, 85 changer transitions 107/330 dead transitions. [2021-08-13 18:26:28,078 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 330 transitions, 17444 flow [2021-08-13 18:26:28,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2021-08-13 18:26:28,079 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-08-13 18:26:28,079 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 198 transitions. [2021-08-13 18:26:28,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 198 transitions. [2021-08-13 18:26:28,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:28,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 198 transitions. [2021-08-13 18:26:28,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.8) internal successors, (198), 10 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) [2021-08-13 18:26:28,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:28,080 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:28,080 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 223 predicate places. [2021-08-13 18:26:28,080 INFO L482 AbstractCegarLoop]: Abstraction has has 250 places, 330 transitions, 17444 flow [2021-08-13 18:26:28,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:28,080 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:28,080 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:28,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-08-13 18:26:28,080 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:28,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:28,081 INFO L82 PathProgramCache]: Analyzing trace with hash 68964976, now seen corresponding path program 19 times [2021-08-13 18:26:28,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:28,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631618085] [2021-08-13 18:26:28,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:28,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:28,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:28,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:28,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:28,100 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:28,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:28,107 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:28,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:28,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:28,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:28,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:28,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:28,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631618085] [2021-08-13 18:26:28,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631618085] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:28,129 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:28,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:28,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112575996] [2021-08-13 18:26:28,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:28,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:28,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:28,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:28,130 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:28,130 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 330 transitions, 17444 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:28,130 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:28,130 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:28,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:28,421 INFO L129 PetriNetUnfolder]: 302/997 cut-off events. [2021-08-13 18:26:28,421 INFO L130 PetriNetUnfolder]: For 14703/14770 co-relation queries the response was YES. [2021-08-13 18:26:28,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16428 conditions, 997 events. 302/997 cut-off events. For 14703/14770 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8572 event pairs, 12 based on Foata normal form. 10/777 useless extension candidates. Maximal degree in co-relation 15897. Up to 382 conditions per place. [2021-08-13 18:26:28,428 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 127 selfloop transitions, 84 changer transitions 108/329 dead transitions. [2021-08-13 18:26:28,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 329 transitions, 18030 flow [2021-08-13 18:26:28,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 18:26:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 18:26:28,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 179 transitions. [2021-08-13 18:26:28,429 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7103174603174603 [2021-08-13 18:26:28,429 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 179 transitions. [2021-08-13 18:26:28,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 179 transitions. [2021-08-13 18:26:28,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:28,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 179 transitions. [2021-08-13 18:26:28,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 19.88888888888889) internal successors, (179), 9 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:28,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:28,430 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:28,430 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 231 predicate places. [2021-08-13 18:26:28,430 INFO L482 AbstractCegarLoop]: Abstraction has has 258 places, 329 transitions, 18030 flow [2021-08-13 18:26:28,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:28,430 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:28,430 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:28,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-08-13 18:26:28,430 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:28,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:28,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1342107910, now seen corresponding path program 20 times [2021-08-13 18:26:28,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:28,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733149268] [2021-08-13 18:26:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:28,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:28,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:28,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:28,453 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:28,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:28,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:26:28,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:28,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:28,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:28,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:28,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:28,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733149268] [2021-08-13 18:26:28,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733149268] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:28,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:28,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:28,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281383625] [2021-08-13 18:26:28,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:28,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:28,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:28,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:28,493 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:28,494 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 329 transitions, 18030 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:28,494 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:28,494 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:28,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:28,824 INFO L129 PetriNetUnfolder]: 302/1001 cut-off events. [2021-08-13 18:26:28,824 INFO L130 PetriNetUnfolder]: For 17288/17570 co-relation queries the response was YES. [2021-08-13 18:26:28,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17069 conditions, 1001 events. 302/1001 cut-off events. For 17288/17570 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 8618 event pairs, 16 based on Foata normal form. 15/785 useless extension candidates. Maximal degree in co-relation 16522. Up to 384 conditions per place. [2021-08-13 18:26:28,832 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 133 selfloop transitions, 79 changer transitions 109/331 dead transitions. [2021-08-13 18:26:28,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 331 transitions, 18776 flow [2021-08-13 18:26:28,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 214 transitions. [2021-08-13 18:26:28,833 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6948051948051948 [2021-08-13 18:26:28,833 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 214 transitions. [2021-08-13 18:26:28,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 214 transitions. [2021-08-13 18:26:28,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:28,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 214 transitions. [2021-08-13 18:26:28,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:28,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:28,834 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:28,834 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 241 predicate places. [2021-08-13 18:26:28,834 INFO L482 AbstractCegarLoop]: Abstraction has has 268 places, 331 transitions, 18776 flow [2021-08-13 18:26:28,834 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:28,834 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:28,834 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:28,835 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-08-13 18:26:28,835 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:28,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:28,835 INFO L82 PathProgramCache]: Analyzing trace with hash 245086930, now seen corresponding path program 21 times [2021-08-13 18:26:28,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:28,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264142296] [2021-08-13 18:26:28,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:28,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:28,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:28,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:28,852 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:28,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:28,862 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:28,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:28,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:28,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:28,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:28,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:28,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:28,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:28,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264142296] [2021-08-13 18:26:28,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264142296] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:28,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:28,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:28,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113271094] [2021-08-13 18:26:28,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:28,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:28,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:28,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:28,905 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:28,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 331 transitions, 18776 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:28,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:28,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:28,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:29,301 INFO L129 PetriNetUnfolder]: 301/1000 cut-off events. [2021-08-13 18:26:29,301 INFO L130 PetriNetUnfolder]: For 17910/18200 co-relation queries the response was YES. [2021-08-13 18:26:29,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17654 conditions, 1000 events. 301/1000 cut-off events. For 17910/18200 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8601 event pairs, 16 based on Foata normal form. 15/784 useless extension candidates. Maximal degree in co-relation 17091. Up to 384 conditions per place. [2021-08-13 18:26:29,310 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 132 selfloop transitions, 79 changer transitions 110/331 dead transitions. [2021-08-13 18:26:29,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 331 transitions, 19418 flow [2021-08-13 18:26:29,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:29,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:29,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2021-08-13 18:26:29,311 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-08-13 18:26:29,311 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 198 transitions. [2021-08-13 18:26:29,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 198 transitions. [2021-08-13 18:26:29,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:29,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 198 transitions. [2021-08-13 18:26:29,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.8) internal successors, (198), 10 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) [2021-08-13 18:26:29,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:29,312 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:29,313 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 250 predicate places. [2021-08-13 18:26:29,313 INFO L482 AbstractCegarLoop]: Abstraction has has 277 places, 331 transitions, 19418 flow [2021-08-13 18:26:29,313 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:29,313 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:29,313 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:29,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-08-13 18:26:29,313 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:29,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:29,313 INFO L82 PathProgramCache]: Analyzing trace with hash 672254046, now seen corresponding path program 22 times [2021-08-13 18:26:29,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:29,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954207734] [2021-08-13 18:26:29,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:29,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:29,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:29,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:29,339 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:26:29,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:29,345 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:26:29,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:29,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:29,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:29,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:29,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:29,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:29,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954207734] [2021-08-13 18:26:29,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954207734] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:29,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:29,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:29,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892344211] [2021-08-13 18:26:29,375 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:29,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:29,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:29,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:29,376 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:29,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 331 transitions, 19418 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:29,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:29,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:29,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:29,706 INFO L129 PetriNetUnfolder]: 304/1023 cut-off events. [2021-08-13 18:26:29,706 INFO L130 PetriNetUnfolder]: For 17386/17475 co-relation queries the response was YES. [2021-08-13 18:26:29,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18503 conditions, 1023 events. 304/1023 cut-off events. For 17386/17475 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 8903 event pairs, 16 based on Foata normal form. 12/800 useless extension candidates. Maximal degree in co-relation 17891. Up to 389 conditions per place. [2021-08-13 18:26:29,715 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 129 selfloop transitions, 90 changer transitions 111/340 dead transitions. [2021-08-13 18:26:29,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 340 transitions, 20544 flow [2021-08-13 18:26:29,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:29,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:29,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 197 transitions. [2021-08-13 18:26:29,716 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7035714285714286 [2021-08-13 18:26:29,716 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 197 transitions. [2021-08-13 18:26:29,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 197 transitions. [2021-08-13 18:26:29,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:29,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 197 transitions. [2021-08-13 18:26:29,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.7) internal successors, (197), 10 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) [2021-08-13 18:26:29,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:29,717 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:29,717 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 259 predicate places. [2021-08-13 18:26:29,717 INFO L482 AbstractCegarLoop]: Abstraction has has 286 places, 340 transitions, 20544 flow [2021-08-13 18:26:29,717 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:29,717 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:29,718 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:29,718 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-08-13 18:26:29,718 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:29,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:29,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1866325310, now seen corresponding path program 23 times [2021-08-13 18:26:29,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:29,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286916305] [2021-08-13 18:26:29,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:29,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:29,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:29,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:29,746 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:29,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:29,757 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:29,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:29,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:29,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:29,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:29,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:29,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:29,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:29,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286916305] [2021-08-13 18:26:29,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286916305] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:29,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:29,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:29,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990193097] [2021-08-13 18:26:29,791 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:29,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:29,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:29,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:29,792 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:29,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 340 transitions, 20544 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:29,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:29,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:29,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:30,147 INFO L129 PetriNetUnfolder]: 304/1020 cut-off events. [2021-08-13 18:26:30,148 INFO L130 PetriNetUnfolder]: For 19945/20289 co-relation queries the response was YES. [2021-08-13 18:26:30,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19062 conditions, 1020 events. 304/1020 cut-off events. For 19945/20289 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 8870 event pairs, 18 based on Foata normal form. 20/805 useless extension candidates. Maximal degree in co-relation 18467. Up to 388 conditions per place. [2021-08-13 18:26:30,156 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 135 selfloop transitions, 82 changer transitions 112/339 dead transitions. [2021-08-13 18:26:30,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 339 transitions, 21142 flow [2021-08-13 18:26:30,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:30,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 197 transitions. [2021-08-13 18:26:30,161 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7035714285714286 [2021-08-13 18:26:30,161 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 197 transitions. [2021-08-13 18:26:30,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 197 transitions. [2021-08-13 18:26:30,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:30,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 197 transitions. [2021-08-13 18:26:30,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.7) internal successors, (197), 10 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) [2021-08-13 18:26:30,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:30,163 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:30,163 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 268 predicate places. [2021-08-13 18:26:30,163 INFO L482 AbstractCegarLoop]: Abstraction has has 295 places, 339 transitions, 21142 flow [2021-08-13 18:26:30,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:30,163 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:30,163 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:30,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-08-13 18:26:30,163 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:30,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:30,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1615717042, now seen corresponding path program 24 times [2021-08-13 18:26:30,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:30,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23644412] [2021-08-13 18:26:30,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:30,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:30,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:30,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:30,187 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:26:30,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:30,193 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:26:30,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:30,210 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:30,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:30,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:30,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:30,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:30,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23644412] [2021-08-13 18:26:30,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23644412] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:30,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:30,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:30,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324198434] [2021-08-13 18:26:30,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:30,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:30,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:30,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:30,235 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:30,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 339 transitions, 21142 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:30,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:30,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:30,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:30,592 INFO L129 PetriNetUnfolder]: 304/1017 cut-off events. [2021-08-13 18:26:30,592 INFO L130 PetriNetUnfolder]: For 19994/20308 co-relation queries the response was YES. [2021-08-13 18:26:30,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19624 conditions, 1017 events. 304/1017 cut-off events. For 19994/20308 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 8848 event pairs, 16 based on Foata normal form. 15/797 useless extension candidates. Maximal degree in co-relation 19048. Up to 387 conditions per place. [2021-08-13 18:26:30,601 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 127 selfloop transitions, 88 changer transitions 113/338 dead transitions. [2021-08-13 18:26:30,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 338 transitions, 21736 flow [2021-08-13 18:26:30,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 18:26:30,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 18:26:30,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 178 transitions. [2021-08-13 18:26:30,602 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7063492063492064 [2021-08-13 18:26:30,602 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 178 transitions. [2021-08-13 18:26:30,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 178 transitions. [2021-08-13 18:26:30,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:30,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 178 transitions. [2021-08-13 18:26:30,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 19.77777777777778) internal successors, (178), 9 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:30,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:30,603 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:30,603 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 276 predicate places. [2021-08-13 18:26:30,603 INFO L482 AbstractCegarLoop]: Abstraction has has 303 places, 338 transitions, 21736 flow [2021-08-13 18:26:30,603 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:30,603 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:30,603 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:30,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-08-13 18:26:30,603 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:30,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:30,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1037837710, now seen corresponding path program 25 times [2021-08-13 18:26:30,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:30,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026345858] [2021-08-13 18:26:30,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:30,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:30,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:30,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:30,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:30,629 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:30,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:30,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:30,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:30,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:30,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:30,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:30,667 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:30,667 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026345858] [2021-08-13 18:26:30,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026345858] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:30,668 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:30,668 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:30,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355374427] [2021-08-13 18:26:30,668 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:30,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:30,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:30,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:30,668 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:30,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 338 transitions, 21736 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:30,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:30,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:30,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:31,020 INFO L129 PetriNetUnfolder]: 303/1019 cut-off events. [2021-08-13 18:26:31,020 INFO L130 PetriNetUnfolder]: For 26765/28491 co-relation queries the response was YES. [2021-08-13 18:26:31,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20218 conditions, 1019 events. 303/1019 cut-off events. For 26765/28491 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 8855 event pairs, 18 based on Foata normal form. 24/808 useless extension candidates. Maximal degree in co-relation 19627. Up to 387 conditions per place. [2021-08-13 18:26:31,028 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 123 selfloop transitions, 91 changer transitions 114/338 dead transitions. [2021-08-13 18:26:31,028 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 338 transitions, 22392 flow [2021-08-13 18:26:31,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:31,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 199 transitions. [2021-08-13 18:26:31,029 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7107142857142857 [2021-08-13 18:26:31,029 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 199 transitions. [2021-08-13 18:26:31,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 199 transitions. [2021-08-13 18:26:31,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:31,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 199 transitions. [2021-08-13 18:26:31,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.9) internal successors, (199), 10 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:31,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:31,030 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:31,030 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 285 predicate places. [2021-08-13 18:26:31,030 INFO L482 AbstractCegarLoop]: Abstraction has has 312 places, 338 transitions, 22392 flow [2021-08-13 18:26:31,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:31,031 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:31,031 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:31,031 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-08-13 18:26:31,031 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:31,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:31,031 INFO L82 PathProgramCache]: Analyzing trace with hash -502607908, now seen corresponding path program 26 times [2021-08-13 18:26:31,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:31,031 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158012656] [2021-08-13 18:26:31,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:31,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:31,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:31,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:31,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:31,056 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:31,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:31,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:31,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:31,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:31,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:31,088 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:31,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158012656] [2021-08-13 18:26:31,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158012656] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:31,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:31,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:31,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188741169] [2021-08-13 18:26:31,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:31,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:31,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:31,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:31,089 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:31,089 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 338 transitions, 22392 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:31,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:31,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:31,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:31,464 INFO L129 PetriNetUnfolder]: 303/1023 cut-off events. [2021-08-13 18:26:31,464 INFO L130 PetriNetUnfolder]: For 21959/22327 co-relation queries the response was YES. [2021-08-13 18:26:31,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20785 conditions, 1023 events. 303/1023 cut-off events. For 21959/22327 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 8959 event pairs, 18 based on Foata normal form. 20/808 useless extension candidates. Maximal degree in co-relation 20216. Up to 386 conditions per place. [2021-08-13 18:26:31,474 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 122 selfloop transitions, 90 changer transitions 115/337 dead transitions. [2021-08-13 18:26:31,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 337 transitions, 22980 flow [2021-08-13 18:26:31,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:31,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 199 transitions. [2021-08-13 18:26:31,475 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7107142857142857 [2021-08-13 18:26:31,475 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 199 transitions. [2021-08-13 18:26:31,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 199 transitions. [2021-08-13 18:26:31,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:31,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 199 transitions. [2021-08-13 18:26:31,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.9) internal successors, (199), 10 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:31,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:31,476 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:31,476 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 294 predicate places. [2021-08-13 18:26:31,476 INFO L482 AbstractCegarLoop]: Abstraction has has 321 places, 337 transitions, 22980 flow [2021-08-13 18:26:31,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:31,476 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:31,476 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:31,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-08-13 18:26:31,477 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:31,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:31,477 INFO L82 PathProgramCache]: Analyzing trace with hash -77592026, now seen corresponding path program 27 times [2021-08-13 18:26:31,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:31,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310982349] [2021-08-13 18:26:31,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:31,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:31,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:31,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:31,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:31,518 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:26:31,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:31,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:31,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:31,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:31,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:31,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:31,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310982349] [2021-08-13 18:26:31,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310982349] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:31,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:31,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:31,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951142891] [2021-08-13 18:26:31,544 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:31,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:31,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:31,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:31,545 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:31,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 337 transitions, 22980 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:31,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:31,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:31,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:31,869 INFO L129 PetriNetUnfolder]: 303/1020 cut-off events. [2021-08-13 18:26:31,869 INFO L130 PetriNetUnfolder]: For 19158/19247 co-relation queries the response was YES. [2021-08-13 18:26:31,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21342 conditions, 1020 events. 303/1020 cut-off events. For 19158/19247 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 8919 event pairs, 12 based on Foata normal form. 12/797 useless extension candidates. Maximal degree in co-relation 20797. Up to 385 conditions per place. [2021-08-13 18:26:31,877 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 119 selfloop transitions, 91 changer transitions 116/336 dead transitions. [2021-08-13 18:26:31,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 336 transitions, 23564 flow [2021-08-13 18:26:31,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:31,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 199 transitions. [2021-08-13 18:26:31,879 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7107142857142857 [2021-08-13 18:26:31,879 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 199 transitions. [2021-08-13 18:26:31,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 199 transitions. [2021-08-13 18:26:31,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:31,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 199 transitions. [2021-08-13 18:26:31,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.9) internal successors, (199), 10 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:31,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:31,880 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:31,880 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 303 predicate places. [2021-08-13 18:26:31,880 INFO L482 AbstractCegarLoop]: Abstraction has has 330 places, 336 transitions, 23564 flow [2021-08-13 18:26:31,880 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:31,881 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:31,881 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:31,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-08-13 18:26:31,881 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:31,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:31,881 INFO L82 PathProgramCache]: Analyzing trace with hash -195239860, now seen corresponding path program 28 times [2021-08-13 18:26:31,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:31,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186166276] [2021-08-13 18:26:31,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:31,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:31,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:31,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:31,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:31,911 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:26:31,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:31,918 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:31,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:31,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:31,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:31,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:31,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:31,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:31,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186166276] [2021-08-13 18:26:31,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186166276] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:31,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:31,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:31,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181574966] [2021-08-13 18:26:31,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:31,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:31,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:31,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:31,940 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:31,940 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 336 transitions, 23564 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:31,940 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:31,940 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:31,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:32,211 INFO L129 PetriNetUnfolder]: 303/1027 cut-off events. [2021-08-13 18:26:32,212 INFO L130 PetriNetUnfolder]: For 18995/19062 co-relation queries the response was YES. [2021-08-13 18:26:32,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22001 conditions, 1027 events. 303/1027 cut-off events. For 18995/19062 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 9016 event pairs, 12 based on Foata normal form. 10/801 useless extension candidates. Maximal degree in co-relation 21443. Up to 385 conditions per place. [2021-08-13 18:26:32,220 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 120 selfloop transitions, 91 changer transitions 117/338 dead transitions. [2021-08-13 18:26:32,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 338 transitions, 24336 flow [2021-08-13 18:26:32,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 18:26:32,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 18:26:32,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 180 transitions. [2021-08-13 18:26:32,221 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2021-08-13 18:26:32,221 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 180 transitions. [2021-08-13 18:26:32,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 180 transitions. [2021-08-13 18:26:32,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:32,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 180 transitions. [2021-08-13 18:26:32,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 20.0) internal successors, (180), 9 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:32,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:32,222 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:32,222 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 311 predicate places. [2021-08-13 18:26:32,222 INFO L482 AbstractCegarLoop]: Abstraction has has 338 places, 338 transitions, 24336 flow [2021-08-13 18:26:32,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:32,222 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:32,222 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:32,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-08-13 18:26:32,222 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:32,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:32,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1121303812, now seen corresponding path program 29 times [2021-08-13 18:26:32,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:32,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895301141] [2021-08-13 18:26:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:32,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:32,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:32,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:32,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:32,248 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:32,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:32,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:32,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:32,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:32,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:32,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895301141] [2021-08-13 18:26:32,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895301141] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:32,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:32,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:32,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946894791] [2021-08-13 18:26:32,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:32,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:32,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:32,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:32,276 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:32,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 338 transitions, 24336 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:32,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:32,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:32,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:32,581 INFO L129 PetriNetUnfolder]: 303/1020 cut-off events. [2021-08-13 18:26:32,581 INFO L130 PetriNetUnfolder]: For 22705/23059 co-relation queries the response was YES. [2021-08-13 18:26:32,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22549 conditions, 1020 events. 303/1020 cut-off events. For 22705/23059 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 8925 event pairs, 16 based on Foata normal form. 15/799 useless extension candidates. Maximal degree in co-relation 22018. Up to 384 conditions per place. [2021-08-13 18:26:32,589 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 117 selfloop transitions, 92 changer transitions 118/337 dead transitions. [2021-08-13 18:26:32,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 337 transitions, 24918 flow [2021-08-13 18:26:32,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2021-08-13 18:26:32,590 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-08-13 18:26:32,590 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 198 transitions. [2021-08-13 18:26:32,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 198 transitions. [2021-08-13 18:26:32,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:32,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 198 transitions. [2021-08-13 18:26:32,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.8) internal successors, (198), 10 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) [2021-08-13 18:26:32,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:32,591 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:32,592 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 320 predicate places. [2021-08-13 18:26:32,592 INFO L482 AbstractCegarLoop]: Abstraction has has 347 places, 337 transitions, 24918 flow [2021-08-13 18:26:32,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:32,592 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:32,592 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:32,592 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-08-13 18:26:32,592 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:32,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:32,592 INFO L82 PathProgramCache]: Analyzing trace with hash 2119255482, now seen corresponding path program 30 times [2021-08-13 18:26:32,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:32,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712488636] [2021-08-13 18:26:32,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:32,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:32,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:32,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:32,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:32,620 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:32,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:32,627 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:32,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:32,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:32,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:32,648 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:32,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712488636] [2021-08-13 18:26:32,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712488636] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:32,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:32,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:32,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744897320] [2021-08-13 18:26:32,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:32,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:32,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:32,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:32,649 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:32,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 337 transitions, 24918 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:32,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:32,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:32,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:32,974 INFO L129 PetriNetUnfolder]: 303/1015 cut-off events. [2021-08-13 18:26:32,975 INFO L130 PetriNetUnfolder]: For 30042/31990 co-relation queries the response was YES. [2021-08-13 18:26:32,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23098 conditions, 1015 events. 303/1015 cut-off events. For 30042/31990 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 8865 event pairs, 16 based on Foata normal form. 19/798 useless extension candidates. Maximal degree in co-relation 22596. Up to 383 conditions per place. [2021-08-13 18:26:32,982 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 116 selfloop transitions, 91 changer transitions 119/336 dead transitions. [2021-08-13 18:26:32,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 336 transitions, 25496 flow [2021-08-13 18:26:32,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 18:26:32,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 18:26:32,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 179 transitions. [2021-08-13 18:26:32,983 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7103174603174603 [2021-08-13 18:26:32,983 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 179 transitions. [2021-08-13 18:26:32,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 179 transitions. [2021-08-13 18:26:32,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:32,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 179 transitions. [2021-08-13 18:26:32,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 19.88888888888889) internal successors, (179), 9 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:32,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:32,984 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:32,984 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 328 predicate places. [2021-08-13 18:26:32,984 INFO L482 AbstractCegarLoop]: Abstraction has has 355 places, 336 transitions, 25496 flow [2021-08-13 18:26:32,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:32,985 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:32,985 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:32,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-08-13 18:26:32,985 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:32,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:32,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1904527606, now seen corresponding path program 31 times [2021-08-13 18:26:32,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:32,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683984035] [2021-08-13 18:26:32,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:32,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:32,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:32,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:32,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:32,999 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:32,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:33,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:33,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:26:33,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:33,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:33,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:33,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:33,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:33,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:33,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:33,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:33,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683984035] [2021-08-13 18:26:33,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683984035] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:33,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:33,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:33,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969934606] [2021-08-13 18:26:33,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:33,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:33,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:33,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:33,038 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:33,038 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 336 transitions, 25496 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:33,038 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:33,038 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:33,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:33,439 INFO L129 PetriNetUnfolder]: 416/1335 cut-off events. [2021-08-13 18:26:33,439 INFO L130 PetriNetUnfolder]: For 40211/42249 co-relation queries the response was YES. [2021-08-13 18:26:33,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31507 conditions, 1335 events. 416/1335 cut-off events. For 40211/42249 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 12182 event pairs, 9 based on Foata normal form. 20/1040 useless extension candidates. Maximal degree in co-relation 30650. Up to 536 conditions per place. [2021-08-13 18:26:33,452 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 223 selfloop transitions, 91 changer transitions 139/463 dead transitions. [2021-08-13 18:26:33,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 463 transitions, 36072 flow [2021-08-13 18:26:33,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-13 18:26:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-08-13 18:26:33,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 275 transitions. [2021-08-13 18:26:33,453 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2021-08-13 18:26:33,453 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 275 transitions. [2021-08-13 18:26:33,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 275 transitions. [2021-08-13 18:26:33,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:33,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 275 transitions. [2021-08-13 18:26:33,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 18.333333333333332) internal successors, (275), 15 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:33,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 28.0) internal successors, (448), 16 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:33,454 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 28.0) internal successors, (448), 16 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:33,454 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 342 predicate places. [2021-08-13 18:26:33,454 INFO L482 AbstractCegarLoop]: Abstraction has has 369 places, 463 transitions, 36072 flow [2021-08-13 18:26:33,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:33,454 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:33,454 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:33,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-08-13 18:26:33,455 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:33,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:33,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1373771206, now seen corresponding path program 32 times [2021-08-13 18:26:33,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:33,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142455304] [2021-08-13 18:26:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:33,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:33,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:33,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:33,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:33,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:33,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:33,484 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:26:33,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:33,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:33,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:26:33,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:33,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:33,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:33,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:33,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:33,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:33,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:33,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142455304] [2021-08-13 18:26:33,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142455304] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:33,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:33,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:33,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728601694] [2021-08-13 18:26:33,529 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:33,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:33,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:33,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:33,529 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:33,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 463 transitions, 36072 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:33,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:33,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:33,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:34,158 INFO L129 PetriNetUnfolder]: 585/1793 cut-off events. [2021-08-13 18:26:34,159 INFO L130 PetriNetUnfolder]: For 52411/54315 co-relation queries the response was YES. [2021-08-13 18:26:34,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44011 conditions, 1793 events. 585/1793 cut-off events. For 52411/54315 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 16788 event pairs, 3 based on Foata normal form. 15/1373 useless extension candidates. Maximal degree in co-relation 42568. Up to 741 conditions per place. [2021-08-13 18:26:34,182 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 350 selfloop transitions, 150 changer transitions 159/669 dead transitions. [2021-08-13 18:26:34,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 669 transitions, 53196 flow [2021-08-13 18:26:34,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-13 18:26:34,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-08-13 18:26:34,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 275 transitions. [2021-08-13 18:26:34,184 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2021-08-13 18:26:34,184 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 275 transitions. [2021-08-13 18:26:34,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 275 transitions. [2021-08-13 18:26:34,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:34,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 275 transitions. [2021-08-13 18:26:34,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 18.333333333333332) internal successors, (275), 15 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:34,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 28.0) internal successors, (448), 16 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:34,185 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 28.0) internal successors, (448), 16 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:34,185 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 356 predicate places. [2021-08-13 18:26:34,185 INFO L482 AbstractCegarLoop]: Abstraction has has 383 places, 669 transitions, 53196 flow [2021-08-13 18:26:34,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:34,185 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:34,185 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:34,186 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-08-13 18:26:34,186 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:34,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:34,186 INFO L82 PathProgramCache]: Analyzing trace with hash -2141065476, now seen corresponding path program 33 times [2021-08-13 18:26:34,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:34,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972708454] [2021-08-13 18:26:34,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:34,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:34,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:34,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:34,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:34,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:34,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:34,204 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:34,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:34,210 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:34,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:34,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:34,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:34,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:34,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:34,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:34,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:34,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:34,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972708454] [2021-08-13 18:26:34,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972708454] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:34,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:34,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:34,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801095736] [2021-08-13 18:26:34,241 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:34,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:34,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:34,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:34,242 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:34,242 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 669 transitions, 53196 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:34,242 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:34,242 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:34,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:34,984 INFO L129 PetriNetUnfolder]: 585/1783 cut-off events. [2021-08-13 18:26:34,984 INFO L130 PetriNetUnfolder]: For 46393/46920 co-relation queries the response was YES. [2021-08-13 18:26:34,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45035 conditions, 1783 events. 585/1783 cut-off events. For 46393/46920 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 16605 event pairs, 7 based on Foata normal form. 11/1359 useless extension candidates. Maximal degree in co-relation 43604. Up to 740 conditions per place. [2021-08-13 18:26:35,002 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 349 selfloop transitions, 149 changer transitions 160/668 dead transitions. [2021-08-13 18:26:35,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 668 transitions, 54432 flow [2021-08-13 18:26:35,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 18:26:35,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 18:26:35,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 260 transitions. [2021-08-13 18:26:35,003 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6632653061224489 [2021-08-13 18:26:35,003 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 260 transitions. [2021-08-13 18:26:35,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 260 transitions. [2021-08-13 18:26:35,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:35,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 260 transitions. [2021-08-13 18:26:35,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 18.571428571428573) internal successors, (260), 14 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:35,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:35,004 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:35,005 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 369 predicate places. [2021-08-13 18:26:35,005 INFO L482 AbstractCegarLoop]: Abstraction has has 396 places, 668 transitions, 54432 flow [2021-08-13 18:26:35,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:35,005 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:35,005 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:35,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-08-13 18:26:35,005 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:35,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:35,005 INFO L82 PathProgramCache]: Analyzing trace with hash -523258356, now seen corresponding path program 34 times [2021-08-13 18:26:35,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:35,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779151578] [2021-08-13 18:26:35,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:35,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:35,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:35,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:35,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:35,039 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:35,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:35,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:35,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:35,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:35,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:35,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779151578] [2021-08-13 18:26:35,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779151578] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:35,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:35,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:35,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399241046] [2021-08-13 18:26:35,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:35,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:35,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:35,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:35,074 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:35,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 668 transitions, 54432 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:35,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:35,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:35,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:35,861 INFO L129 PetriNetUnfolder]: 584/1794 cut-off events. [2021-08-13 18:26:35,862 INFO L130 PetriNetUnfolder]: For 54458/56608 co-relation queries the response was YES. [2021-08-13 18:26:35,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46140 conditions, 1794 events. 584/1794 cut-off events. For 54458/56608 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 16786 event pairs, 4 based on Foata normal form. 19/1378 useless extension candidates. Maximal degree in co-relation 44678. Up to 740 conditions per place. [2021-08-13 18:26:35,881 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 356 selfloop transitions, 141 changer transitions 161/668 dead transitions. [2021-08-13 18:26:35,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 668 transitions, 55748 flow [2021-08-13 18:26:35,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:35,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:35,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 217 transitions. [2021-08-13 18:26:35,882 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7045454545454546 [2021-08-13 18:26:35,882 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 217 transitions. [2021-08-13 18:26:35,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 217 transitions. [2021-08-13 18:26:35,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:35,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 217 transitions. [2021-08-13 18:26:35,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.727272727272727) internal successors, (217), 11 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:35,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:35,883 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:35,883 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 379 predicate places. [2021-08-13 18:26:35,883 INFO L482 AbstractCegarLoop]: Abstraction has has 406 places, 668 transitions, 55748 flow [2021-08-13 18:26:35,884 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:35,884 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:35,884 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:35,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-08-13 18:26:35,884 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:35,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:35,884 INFO L82 PathProgramCache]: Analyzing trace with hash -577463262, now seen corresponding path program 35 times [2021-08-13 18:26:35,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:35,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128050021] [2021-08-13 18:26:35,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:35,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:35,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:35,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:35,915 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:35,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:35,926 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:35,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:35,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:35,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:35,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:35,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:35,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:35,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:35,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128050021] [2021-08-13 18:26:35,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128050021] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:35,957 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:35,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:35,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418968114] [2021-08-13 18:26:35,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:35,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:35,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:35,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:35,958 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:35,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 668 transitions, 55748 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:35,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:35,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:35,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:36,721 INFO L129 PetriNetUnfolder]: 583/1801 cut-off events. [2021-08-13 18:26:36,721 INFO L130 PetriNetUnfolder]: For 46063/46179 co-relation queries the response was YES. [2021-08-13 18:26:36,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47355 conditions, 1801 events. 583/1801 cut-off events. For 46063/46179 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 16916 event pairs, 3 based on Foata normal form. 8/1373 useless extension candidates. Maximal degree in co-relation 45816. Up to 743 conditions per place. [2021-08-13 18:26:36,741 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 354 selfloop transitions, 145 changer transitions 162/671 dead transitions. [2021-08-13 18:26:36,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 671 transitions, 57318 flow [2021-08-13 18:26:36,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:26:36,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:26:36,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 231 transitions. [2021-08-13 18:26:36,743 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-08-13 18:26:36,743 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 231 transitions. [2021-08-13 18:26:36,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 231 transitions. [2021-08-13 18:26:36,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:36,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 231 transitions. [2021-08-13 18:26:36,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.25) internal successors, (231), 12 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:36,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:36,744 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:36,744 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 390 predicate places. [2021-08-13 18:26:36,744 INFO L482 AbstractCegarLoop]: Abstraction has has 417 places, 671 transitions, 57318 flow [2021-08-13 18:26:36,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:36,744 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:36,744 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:36,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-08-13 18:26:36,745 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:36,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:36,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1396658300, now seen corresponding path program 36 times [2021-08-13 18:26:36,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:36,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656129283] [2021-08-13 18:26:36,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:36,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:36,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:36,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:36,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:36,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:36,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:36,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:36,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:36,769 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:36,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:36,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:36,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:36,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:36,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:36,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:36,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:36,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:36,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:36,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656129283] [2021-08-13 18:26:36,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656129283] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:36,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:36,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:36,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527335811] [2021-08-13 18:26:36,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:36,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:36,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:36,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:36,818 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:36,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 671 transitions, 57318 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:36,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:36,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:36,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:37,599 INFO L129 PetriNetUnfolder]: 582/1816 cut-off events. [2021-08-13 18:26:37,599 INFO L130 PetriNetUnfolder]: For 62269/64712 co-relation queries the response was YES. [2021-08-13 18:26:37,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48589 conditions, 1816 events. 582/1816 cut-off events. For 62269/64712 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 17200 event pairs, 3 based on Foata normal form. 23/1402 useless extension candidates. Maximal degree in co-relation 46971. Up to 746 conditions per place. [2021-08-13 18:26:37,623 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 358 selfloop transitions, 143 changer transitions 163/674 dead transitions. [2021-08-13 18:26:37,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 674 transitions, 58900 flow [2021-08-13 18:26:37,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:26:37,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:26:37,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 233 transitions. [2021-08-13 18:26:37,624 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6934523809523809 [2021-08-13 18:26:37,624 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 233 transitions. [2021-08-13 18:26:37,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 233 transitions. [2021-08-13 18:26:37,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:37,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 233 transitions. [2021-08-13 18:26:37,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.416666666666668) internal successors, (233), 12 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:37,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:37,625 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:37,625 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 401 predicate places. [2021-08-13 18:26:37,625 INFO L482 AbstractCegarLoop]: Abstraction has has 428 places, 674 transitions, 58900 flow [2021-08-13 18:26:37,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:37,626 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:37,626 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:37,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-08-13 18:26:37,626 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:37,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:37,626 INFO L82 PathProgramCache]: Analyzing trace with hash -529828452, now seen corresponding path program 37 times [2021-08-13 18:26:37,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:37,626 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150865590] [2021-08-13 18:26:37,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:37,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:37,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:37,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:37,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:37,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:37,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:37,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:37,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:37,661 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:26:37,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:37,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:37,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:37,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:37,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:37,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:37,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:37,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:37,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150865590] [2021-08-13 18:26:37,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150865590] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:37,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:37,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:37,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198242535] [2021-08-13 18:26:37,689 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:37,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:37,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:37,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:37,690 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:37,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 674 transitions, 58900 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:37,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:37,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:37,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:38,457 INFO L129 PetriNetUnfolder]: 582/1815 cut-off events. [2021-08-13 18:26:38,457 INFO L130 PetriNetUnfolder]: For 63744/66313 co-relation queries the response was YES. [2021-08-13 18:26:38,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49632 conditions, 1815 events. 582/1815 cut-off events. For 63744/66313 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 17158 event pairs, 3 based on Foata normal form. 23/1401 useless extension candidates. Maximal degree in co-relation 48029. Up to 745 conditions per place. [2021-08-13 18:26:38,477 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 354 selfloop transitions, 145 changer transitions 164/673 dead transitions. [2021-08-13 18:26:38,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 673 transitions, 60138 flow [2021-08-13 18:26:38,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 216 transitions. [2021-08-13 18:26:38,478 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7012987012987013 [2021-08-13 18:26:38,479 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 216 transitions. [2021-08-13 18:26:38,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 216 transitions. [2021-08-13 18:26:38,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:38,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 216 transitions. [2021-08-13 18:26:38,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.636363636363637) internal successors, (216), 11 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:38,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:38,479 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:38,480 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 411 predicate places. [2021-08-13 18:26:38,480 INFO L482 AbstractCegarLoop]: Abstraction has has 438 places, 673 transitions, 60138 flow [2021-08-13 18:26:38,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:38,480 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:38,480 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:38,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-08-13 18:26:38,480 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:38,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:38,480 INFO L82 PathProgramCache]: Analyzing trace with hash 95996278, now seen corresponding path program 38 times [2021-08-13 18:26:38,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:38,480 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253597566] [2021-08-13 18:26:38,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:38,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:38,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:38,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:38,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:38,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:38,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:38,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:38,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:38,502 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:26:38,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:38,514 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:38,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:38,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:38,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:38,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:38,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:38,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:38,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:38,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253597566] [2021-08-13 18:26:38,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253597566] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:38,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:38,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:38,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497733910] [2021-08-13 18:26:38,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:38,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:38,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:38,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:38,537 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:38,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 673 transitions, 60138 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:38,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:38,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:38,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:39,236 INFO L129 PetriNetUnfolder]: 582/1821 cut-off events. [2021-08-13 18:26:39,236 INFO L130 PetriNetUnfolder]: For 64948/67602 co-relation queries the response was YES. [2021-08-13 18:26:39,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50812 conditions, 1821 events. 582/1821 cut-off events. For 64948/67602 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 17286 event pairs, 4 based on Foata normal form. 19/1402 useless extension candidates. Maximal degree in co-relation 49177. Up to 745 conditions per place. [2021-08-13 18:26:39,257 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 355 selfloop transitions, 145 changer transitions 165/675 dead transitions. [2021-08-13 18:26:39,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 675 transitions, 61624 flow [2021-08-13 18:26:39,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:39,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2021-08-13 18:26:39,258 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-08-13 18:26:39,258 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 198 transitions. [2021-08-13 18:26:39,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 198 transitions. [2021-08-13 18:26:39,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:39,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 198 transitions. [2021-08-13 18:26:39,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.8) internal successors, (198), 10 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) [2021-08-13 18:26:39,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:39,259 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:39,259 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 420 predicate places. [2021-08-13 18:26:39,259 INFO L482 AbstractCegarLoop]: Abstraction has has 447 places, 675 transitions, 61624 flow [2021-08-13 18:26:39,259 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:39,259 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:39,260 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:39,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-08-13 18:26:39,260 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:39,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:39,260 INFO L82 PathProgramCache]: Analyzing trace with hash 885964980, now seen corresponding path program 39 times [2021-08-13 18:26:39,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:39,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203122486] [2021-08-13 18:26:39,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:39,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:39,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:39,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:39,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:39,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:39,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:39,278 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:39,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:39,284 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:39,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:39,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:39,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:39,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:39,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:39,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:39,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:39,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:39,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203122486] [2021-08-13 18:26:39,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203122486] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:39,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:39,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:39,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102356499] [2021-08-13 18:26:39,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:39,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:39,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:39,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:39,310 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:39,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 675 transitions, 61624 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:39,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:39,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:39,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:40,092 INFO L129 PetriNetUnfolder]: 585/1844 cut-off events. [2021-08-13 18:26:40,092 INFO L130 PetriNetUnfolder]: For 54395/54535 co-relation queries the response was YES. [2021-08-13 18:26:40,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52314 conditions, 1844 events. 585/1844 cut-off events. For 54395/54535 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 17605 event pairs, 3 based on Foata normal form. 8/1410 useless extension candidates. Maximal degree in co-relation 50597. Up to 750 conditions per place. [2021-08-13 18:26:40,118 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 367 selfloop transitions, 141 changer transitions 166/684 dead transitions. [2021-08-13 18:26:40,119 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 684 transitions, 63744 flow [2021-08-13 18:26:40,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:26:40,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:26:40,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 232 transitions. [2021-08-13 18:26:40,120 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2021-08-13 18:26:40,120 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 232 transitions. [2021-08-13 18:26:40,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 232 transitions. [2021-08-13 18:26:40,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:40,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 232 transitions. [2021-08-13 18:26:40,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.333333333333332) internal successors, (232), 12 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:40,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:40,121 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:40,121 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 431 predicate places. [2021-08-13 18:26:40,121 INFO L482 AbstractCegarLoop]: Abstraction has has 458 places, 684 transitions, 63744 flow [2021-08-13 18:26:40,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:40,121 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:40,121 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:40,121 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-08-13 18:26:40,121 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:40,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:40,121 INFO L82 PathProgramCache]: Analyzing trace with hash -582343972, now seen corresponding path program 40 times [2021-08-13 18:26:40,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:40,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755060966] [2021-08-13 18:26:40,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:40,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:40,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:40,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:40,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:40,143 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:40,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:40,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:40,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:40,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:40,176 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:40,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755060966] [2021-08-13 18:26:40,176 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755060966] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:40,176 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:40,176 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:40,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176111288] [2021-08-13 18:26:40,177 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:40,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:40,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:40,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:40,178 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:40,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 684 transitions, 63744 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:40,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:40,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:40,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:40,903 INFO L129 PetriNetUnfolder]: 585/1836 cut-off events. [2021-08-13 18:26:40,903 INFO L130 PetriNetUnfolder]: For 71375/74322 co-relation queries the response was YES. [2021-08-13 18:26:40,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53358 conditions, 1836 events. 585/1836 cut-off events. For 71375/74322 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 17465 event pairs, 4 based on Foata normal form. 23/1417 useless extension candidates. Maximal degree in co-relation 51659. Up to 749 conditions per place. [2021-08-13 18:26:40,924 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 359 selfloop transitions, 147 changer transitions 167/683 dead transitions. [2021-08-13 18:26:40,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 683 transitions, 64996 flow [2021-08-13 18:26:40,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:26:40,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:26:40,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 233 transitions. [2021-08-13 18:26:40,925 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6934523809523809 [2021-08-13 18:26:40,925 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 233 transitions. [2021-08-13 18:26:40,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 233 transitions. [2021-08-13 18:26:40,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:40,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 233 transitions. [2021-08-13 18:26:40,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.416666666666668) internal successors, (233), 12 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:40,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:40,926 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:40,926 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 442 predicate places. [2021-08-13 18:26:40,926 INFO L482 AbstractCegarLoop]: Abstraction has has 469 places, 683 transitions, 64996 flow [2021-08-13 18:26:40,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:40,926 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:40,926 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:40,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-08-13 18:26:40,926 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:40,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:40,927 INFO L82 PathProgramCache]: Analyzing trace with hash 181064950, now seen corresponding path program 41 times [2021-08-13 18:26:40,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:40,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619118085] [2021-08-13 18:26:40,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:40,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:40,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:40,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:40,939 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:40,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:40,944 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:40,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:40,951 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:40,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:40,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:40,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:40,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:40,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:40,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:40,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619118085] [2021-08-13 18:26:40,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619118085] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:40,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:40,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:40,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76064415] [2021-08-13 18:26:40,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:40,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:40,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:40,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:40,975 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:40,975 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 683 transitions, 64996 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:40,975 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:40,975 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:40,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:41,705 INFO L129 PetriNetUnfolder]: 585/1837 cut-off events. [2021-08-13 18:26:41,705 INFO L130 PetriNetUnfolder]: For 73131/76204 co-relation queries the response was YES. [2021-08-13 18:26:41,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54414 conditions, 1837 events. 585/1837 cut-off events. For 73131/76204 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 17493 event pairs, 4 based on Foata normal form. 23/1418 useless extension candidates. Maximal degree in co-relation 52735. Up to 748 conditions per place. [2021-08-13 18:26:41,728 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 358 selfloop transitions, 146 changer transitions 168/682 dead transitions. [2021-08-13 18:26:41,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 682 transitions, 66244 flow [2021-08-13 18:26:41,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:41,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:41,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 211 transitions. [2021-08-13 18:26:41,729 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.685064935064935 [2021-08-13 18:26:41,729 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 211 transitions. [2021-08-13 18:26:41,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 211 transitions. [2021-08-13 18:26:41,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:41,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 211 transitions. [2021-08-13 18:26:41,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.181818181818183) internal successors, (211), 11 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:41,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:41,730 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:41,730 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 452 predicate places. [2021-08-13 18:26:41,730 INFO L482 AbstractCegarLoop]: Abstraction has has 479 places, 682 transitions, 66244 flow [2021-08-13 18:26:41,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:41,730 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:41,730 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:41,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-08-13 18:26:41,730 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:41,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:41,730 INFO L82 PathProgramCache]: Analyzing trace with hash -404882564, now seen corresponding path program 42 times [2021-08-13 18:26:41,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:41,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207470250] [2021-08-13 18:26:41,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:41,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:41,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:41,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:41,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:41,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:41,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:41,747 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:41,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:41,753 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-08-13 18:26:41,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:41,761 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:41,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:41,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:41,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:41,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:41,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:41,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:41,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207470250] [2021-08-13 18:26:41,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207470250] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:41,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:41,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:41,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982708087] [2021-08-13 18:26:41,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:41,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:41,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:41,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:41,784 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:41,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 682 transitions, 66244 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:41,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:41,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:41,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:42,520 INFO L129 PetriNetUnfolder]: 595/1880 cut-off events. [2021-08-13 18:26:42,520 INFO L130 PetriNetUnfolder]: For 66559/67531 co-relation queries the response was YES. [2021-08-13 18:26:42,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56676 conditions, 1880 events. 595/1880 cut-off events. For 66559/67531 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 18022 event pairs, 3 based on Foata normal form. 7/1435 useless extension candidates. Maximal degree in co-relation 54860. Up to 762 conditions per place. [2021-08-13 18:26:42,543 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 362 selfloop transitions, 163 changer transitions 169/704 dead transitions. [2021-08-13 18:26:42,543 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 704 transitions, 69680 flow [2021-08-13 18:26:42,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:42,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:42,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 210 transitions. [2021-08-13 18:26:42,544 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818 [2021-08-13 18:26:42,544 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 210 transitions. [2021-08-13 18:26:42,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 210 transitions. [2021-08-13 18:26:42,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:42,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 210 transitions. [2021-08-13 18:26:42,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.09090909090909) internal successors, (210), 11 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:42,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:42,545 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:42,545 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 462 predicate places. [2021-08-13 18:26:42,546 INFO L482 AbstractCegarLoop]: Abstraction has has 489 places, 704 transitions, 69680 flow [2021-08-13 18:26:42,546 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:42,546 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:42,546 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:42,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-08-13 18:26:42,546 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:42,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:42,546 INFO L82 PathProgramCache]: Analyzing trace with hash -604098682, now seen corresponding path program 43 times [2021-08-13 18:26:42,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:42,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196756765] [2021-08-13 18:26:42,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:42,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:42,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:42,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:42,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:42,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:42,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:42,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:42,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:42,568 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:42,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:42,575 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:42,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:42,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:42,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:42,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:42,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:42,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:42,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196756765] [2021-08-13 18:26:42,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196756765] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:42,597 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:42,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:42,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058351286] [2021-08-13 18:26:42,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:42,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:42,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:42,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:42,597 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:42,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 704 transitions, 69680 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:42,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:42,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:42,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:43,444 INFO L129 PetriNetUnfolder]: 595/1874 cut-off events. [2021-08-13 18:26:43,445 INFO L130 PetriNetUnfolder]: For 80085/83410 co-relation queries the response was YES. [2021-08-13 18:26:43,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57738 conditions, 1874 events. 595/1874 cut-off events. For 80085/83410 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 17935 event pairs, 3 based on Foata normal form. 23/1445 useless extension candidates. Maximal degree in co-relation 55943. Up to 761 conditions per place. [2021-08-13 18:26:43,474 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 372 selfloop transitions, 151 changer transitions 170/703 dead transitions. [2021-08-13 18:26:43,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 703 transitions, 70966 flow [2021-08-13 18:26:43,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:43,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2021-08-13 18:26:43,475 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-08-13 18:26:43,475 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 198 transitions. [2021-08-13 18:26:43,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 198 transitions. [2021-08-13 18:26:43,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:43,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 198 transitions. [2021-08-13 18:26:43,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.8) internal successors, (198), 10 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) [2021-08-13 18:26:43,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:43,476 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:43,476 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 471 predicate places. [2021-08-13 18:26:43,476 INFO L482 AbstractCegarLoop]: Abstraction has has 498 places, 703 transitions, 70966 flow [2021-08-13 18:26:43,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:43,476 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:43,476 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:43,476 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-08-13 18:26:43,476 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:43,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:43,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1423922160, now seen corresponding path program 44 times [2021-08-13 18:26:43,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:43,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299378230] [2021-08-13 18:26:43,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:43,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:43,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:43,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:43,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:43,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:43,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:43,501 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:43,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:43,507 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:43,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:43,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:43,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:43,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:43,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:43,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:43,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:43,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:43,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299378230] [2021-08-13 18:26:43,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299378230] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:43,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:43,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:43,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479528962] [2021-08-13 18:26:43,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:43,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:43,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:43,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:43,538 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:43,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 703 transitions, 70966 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:43,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:43,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:43,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:44,369 INFO L129 PetriNetUnfolder]: 594/1882 cut-off events. [2021-08-13 18:26:44,369 INFO L130 PetriNetUnfolder]: For 81389/84799 co-relation queries the response was YES. [2021-08-13 18:26:44,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58876 conditions, 1882 events. 594/1882 cut-off events. For 81389/84799 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 18066 event pairs, 4 based on Foata normal form. 19/1449 useless extension candidates. Maximal degree in co-relation 57049. Up to 761 conditions per place. [2021-08-13 18:26:44,397 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 362 selfloop transitions, 160 changer transitions 171/703 dead transitions. [2021-08-13 18:26:44,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 703 transitions, 72352 flow [2021-08-13 18:26:44,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 18:26:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 18:26:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 260 transitions. [2021-08-13 18:26:44,398 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6632653061224489 [2021-08-13 18:26:44,398 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 260 transitions. [2021-08-13 18:26:44,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 260 transitions. [2021-08-13 18:26:44,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:44,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 260 transitions. [2021-08-13 18:26:44,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 18.571428571428573) internal successors, (260), 14 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:44,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:44,505 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:44,505 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 484 predicate places. [2021-08-13 18:26:44,506 INFO L482 AbstractCegarLoop]: Abstraction has has 511 places, 703 transitions, 72352 flow [2021-08-13 18:26:44,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:44,506 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:44,506 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:44,506 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-08-13 18:26:44,506 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:44,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:44,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1617419302, now seen corresponding path program 45 times [2021-08-13 18:26:44,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:44,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796076621] [2021-08-13 18:26:44,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:44,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:44,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:44,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:44,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:44,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:44,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:44,539 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:44,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:44,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:44,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:26:44,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:44,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:44,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:44,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:44,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:44,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:44,572 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:44,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796076621] [2021-08-13 18:26:44,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796076621] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:44,572 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:44,572 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:44,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862903511] [2021-08-13 18:26:44,572 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:44,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:44,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:44,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:44,573 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:44,573 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 703 transitions, 72352 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:44,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:44,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:44,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:45,336 INFO L129 PetriNetUnfolder]: 593/1919 cut-off events. [2021-08-13 18:26:45,336 INFO L130 PetriNetUnfolder]: For 76824/77958 co-relation queries the response was YES. [2021-08-13 18:26:45,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60567 conditions, 1919 events. 593/1919 cut-off events. For 76824/77958 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 18677 event pairs, 3 based on Foata normal form. 7/1471 useless extension candidates. Maximal degree in co-relation 58540. Up to 771 conditions per place. [2021-08-13 18:26:45,361 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 383 selfloop transitions, 148 changer transitions 172/713 dead transitions. [2021-08-13 18:26:45,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 713 transitions, 74800 flow [2021-08-13 18:26:45,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 18:26:45,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 18:26:45,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 247 transitions. [2021-08-13 18:26:45,362 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2021-08-13 18:26:45,362 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 247 transitions. [2021-08-13 18:26:45,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 247 transitions. [2021-08-13 18:26:45,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:45,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 247 transitions. [2021-08-13 18:26:45,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 19.0) internal successors, (247), 13 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:45,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:45,363 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:45,363 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 496 predicate places. [2021-08-13 18:26:45,364 INFO L482 AbstractCegarLoop]: Abstraction has has 523 places, 713 transitions, 74800 flow [2021-08-13 18:26:45,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:45,364 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:45,364 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:45,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-08-13 18:26:45,364 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:45,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:45,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1488787358, now seen corresponding path program 46 times [2021-08-13 18:26:45,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:45,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582212111] [2021-08-13 18:26:45,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:45,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:45,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:45,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:45,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:45,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:45,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:45,386 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:45,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:45,393 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-08-13 18:26:45,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:45,403 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:45,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:45,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:45,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:45,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:45,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:45,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:45,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:45,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582212111] [2021-08-13 18:26:45,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582212111] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:45,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:45,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:45,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549499733] [2021-08-13 18:26:45,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:45,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:45,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:45,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:45,430 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:45,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 713 transitions, 74800 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:45,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:45,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:45,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:46,431 INFO L129 PetriNetUnfolder]: 631/2069 cut-off events. [2021-08-13 18:26:46,431 INFO L130 PetriNetUnfolder]: For 93279/94467 co-relation queries the response was YES. [2021-08-13 18:26:46,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66154 conditions, 2069 events. 631/2069 cut-off events. For 93279/94467 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 20496 event pairs, 3 based on Foata normal form. 7/1584 useless extension candidates. Maximal degree in co-relation 63522. Up to 824 conditions per place. [2021-08-13 18:26:46,458 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 425 selfloop transitions, 190 changer transitions 173/798 dead transitions. [2021-08-13 18:26:46,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 798 transitions, 84932 flow [2021-08-13 18:26:46,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:46,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:46,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 196 transitions. [2021-08-13 18:26:46,459 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7 [2021-08-13 18:26:46,459 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 196 transitions. [2021-08-13 18:26:46,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 196 transitions. [2021-08-13 18:26:46,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:46,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 196 transitions. [2021-08-13 18:26:46,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.6) internal successors, (196), 10 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:46,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:46,460 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:46,460 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 505 predicate places. [2021-08-13 18:26:46,460 INFO L482 AbstractCegarLoop]: Abstraction has has 532 places, 798 transitions, 84932 flow [2021-08-13 18:26:46,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:46,460 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:46,460 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:46,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-08-13 18:26:46,460 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:46,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:46,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1445676870, now seen corresponding path program 47 times [2021-08-13 18:26:46,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:46,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146440242] [2021-08-13 18:26:46,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:46,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:46,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:46,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:46,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:46,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:46,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:46,482 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:46,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:46,488 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:46,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:46,496 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:46,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:46,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:46,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:46,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:46,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:46,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:46,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146440242] [2021-08-13 18:26:46,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146440242] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:46,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:46,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:46,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759881095] [2021-08-13 18:26:46,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:46,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:46,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:46,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:46,520 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:46,520 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 798 transitions, 84932 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:46,520 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:46,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:46,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:47,482 INFO L129 PetriNetUnfolder]: 631/2067 cut-off events. [2021-08-13 18:26:47,482 INFO L130 PetriNetUnfolder]: For 96187/97470 co-relation queries the response was YES. [2021-08-13 18:26:47,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67309 conditions, 2067 events. 631/2067 cut-off events. For 96187/97470 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 20463 event pairs, 7 based on Foata normal form. 11/1586 useless extension candidates. Maximal degree in co-relation 64690. Up to 823 conditions per place. [2021-08-13 18:26:47,507 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 432 selfloop transitions, 181 changer transitions 174/797 dead transitions. [2021-08-13 18:26:47,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 797 transitions, 86398 flow [2021-08-13 18:26:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:47,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:47,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 211 transitions. [2021-08-13 18:26:47,508 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.685064935064935 [2021-08-13 18:26:47,508 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 211 transitions. [2021-08-13 18:26:47,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 211 transitions. [2021-08-13 18:26:47,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:47,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 211 transitions. [2021-08-13 18:26:47,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.181818181818183) internal successors, (211), 11 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:47,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:47,509 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:47,509 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 515 predicate places. [2021-08-13 18:26:47,509 INFO L482 AbstractCegarLoop]: Abstraction has has 542 places, 797 transitions, 86398 flow [2021-08-13 18:26:47,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:47,510 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:47,510 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:47,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-08-13 18:26:47,510 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:47,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:47,510 INFO L82 PathProgramCache]: Analyzing trace with hash -889886478, now seen corresponding path program 48 times [2021-08-13 18:26:47,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:47,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16497938] [2021-08-13 18:26:47,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:47,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:47,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:47,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:47,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:47,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:47,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:47,526 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:47,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:47,531 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:47,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:47,539 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:47,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:47,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:47,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:47,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:47,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:47,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:47,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16497938] [2021-08-13 18:26:47,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16497938] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:47,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:47,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:47,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796689745] [2021-08-13 18:26:47,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:47,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:47,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:47,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:47,562 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:47,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 797 transitions, 86398 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:47,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:47,563 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:47,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:48,506 INFO L129 PetriNetUnfolder]: 631/2060 cut-off events. [2021-08-13 18:26:48,507 INFO L130 PetriNetUnfolder]: For 85824/85996 co-relation queries the response was YES. [2021-08-13 18:26:48,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68465 conditions, 2060 events. 631/2060 cut-off events. For 85824/85996 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 20325 event pairs, 3 based on Foata normal form. 6/1574 useless extension candidates. Maximal degree in co-relation 65861. Up to 822 conditions per place. [2021-08-13 18:26:48,538 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 435 selfloop transitions, 176 changer transitions 175/796 dead transitions. [2021-08-13 18:26:48,538 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 796 transitions, 87860 flow [2021-08-13 18:26:48,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:48,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:48,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 197 transitions. [2021-08-13 18:26:48,539 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7035714285714286 [2021-08-13 18:26:48,539 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 197 transitions. [2021-08-13 18:26:48,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 197 transitions. [2021-08-13 18:26:48,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:48,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 197 transitions. [2021-08-13 18:26:48,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.7) internal successors, (197), 10 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) [2021-08-13 18:26:48,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:48,540 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:48,540 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 524 predicate places. [2021-08-13 18:26:48,540 INFO L482 AbstractCegarLoop]: Abstraction has has 551 places, 796 transitions, 87860 flow [2021-08-13 18:26:48,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:48,541 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:48,541 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:48,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-08-13 18:26:48,541 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:48,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:48,541 INFO L82 PathProgramCache]: Analyzing trace with hash -536520712, now seen corresponding path program 49 times [2021-08-13 18:26:48,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:48,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402548119] [2021-08-13 18:26:48,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:48,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:48,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:48,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:48,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:48,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:48,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:48,557 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:26:48,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:48,563 INFO L142 QuantifierPusher]: treesize reduction 21, result has 48.8 percent of original size [2021-08-13 18:26:48,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:48,573 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:48,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:48,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:48,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:48,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:48,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:48,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:48,597 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:48,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402548119] [2021-08-13 18:26:48,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402548119] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:48,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:48,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:48,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859685792] [2021-08-13 18:26:48,598 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:48,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:48,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:48,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:48,599 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:48,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 796 transitions, 87860 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:48,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:48,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:48,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:49,474 INFO L129 PetriNetUnfolder]: 631/2060 cut-off events. [2021-08-13 18:26:49,474 INFO L130 PetriNetUnfolder]: For 89112/89312 co-relation queries the response was YES. [2021-08-13 18:26:49,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69623 conditions, 2060 events. 631/2060 cut-off events. For 89112/89312 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 20343 event pairs, 3 based on Foata normal form. 8/1576 useless extension candidates. Maximal degree in co-relation 67036. Up to 821 conditions per place. [2021-08-13 18:26:49,508 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 412 selfloop transitions, 197 changer transitions 176/795 dead transitions. [2021-08-13 18:26:49,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 560 places, 795 transitions, 89318 flow [2021-08-13 18:26:49,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:49,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:49,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 195 transitions. [2021-08-13 18:26:49,509 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-08-13 18:26:49,509 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 195 transitions. [2021-08-13 18:26:49,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 195 transitions. [2021-08-13 18:26:49,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:49,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 195 transitions. [2021-08-13 18:26:49,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.5) internal successors, (195), 10 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:49,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:49,510 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:49,510 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 533 predicate places. [2021-08-13 18:26:49,510 INFO L482 AbstractCegarLoop]: Abstraction has has 560 places, 795 transitions, 89318 flow [2021-08-13 18:26:49,511 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:49,511 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:49,511 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:49,511 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-08-13 18:26:49,511 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:49,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:49,511 INFO L82 PathProgramCache]: Analyzing trace with hash 2132899772, now seen corresponding path program 50 times [2021-08-13 18:26:49,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:49,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049010966] [2021-08-13 18:26:49,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:49,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:49,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:49,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:49,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:49,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:49,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:49,529 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:49,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:49,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:49,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:26:49,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:49,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:49,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:49,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:49,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:49,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:49,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:49,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:49,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049010966] [2021-08-13 18:26:49,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049010966] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:49,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:49,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:49,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380324075] [2021-08-13 18:26:49,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:49,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:49,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:49,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:49,572 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:49,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 795 transitions, 89318 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:49,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:49,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:49,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:50,614 INFO L129 PetriNetUnfolder]: 631/2059 cut-off events. [2021-08-13 18:26:50,614 INFO L130 PetriNetUnfolder]: For 101567/103012 co-relation queries the response was YES. [2021-08-13 18:26:50,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70771 conditions, 2059 events. 631/2059 cut-off events. For 101567/103012 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 20390 event pairs, 7 based on Foata normal form. 11/1578 useless extension candidates. Maximal degree in co-relation 68203. Up to 820 conditions per place. [2021-08-13 18:26:50,640 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 420 selfloop transitions, 187 changer transitions 177/794 dead transitions. [2021-08-13 18:26:50,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 794 transitions, 90772 flow [2021-08-13 18:26:50,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 18:26:50,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 18:26:50,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 246 transitions. [2021-08-13 18:26:50,641 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6758241758241759 [2021-08-13 18:26:50,641 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 246 transitions. [2021-08-13 18:26:50,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 246 transitions. [2021-08-13 18:26:50,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:50,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 246 transitions. [2021-08-13 18:26:50,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 18.923076923076923) internal successors, (246), 13 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:50,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:50,642 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:50,642 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 545 predicate places. [2021-08-13 18:26:50,642 INFO L482 AbstractCegarLoop]: Abstraction has has 572 places, 794 transitions, 90772 flow [2021-08-13 18:26:50,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:50,643 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:50,643 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:50,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-08-13 18:26:50,643 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:50,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:50,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1927607212, now seen corresponding path program 51 times [2021-08-13 18:26:50,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:50,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075715721] [2021-08-13 18:26:50,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:50,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:50,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:50,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:50,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:50,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:50,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:50,667 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:26:50,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:50,672 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:26:50,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:50,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:50,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:50,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:50,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:50,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:50,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:50,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:50,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:50,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075715721] [2021-08-13 18:26:50,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075715721] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:50,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:50,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:50,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973911659] [2021-08-13 18:26:50,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:50,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:50,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:50,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:50,698 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:50,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 794 transitions, 90772 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:50,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:50,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:50,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:51,818 INFO L129 PetriNetUnfolder]: 631/2059 cut-off events. [2021-08-13 18:26:51,819 INFO L130 PetriNetUnfolder]: For 119015/123348 co-relation queries the response was YES. [2021-08-13 18:26:51,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71929 conditions, 2059 events. 631/2059 cut-off events. For 119015/123348 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 20313 event pairs, 4 based on Foata normal form. 23/1590 useless extension candidates. Maximal degree in co-relation 69382. Up to 819 conditions per place. [2021-08-13 18:26:51,846 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 409 selfloop transitions, 196 changer transitions 178/793 dead transitions. [2021-08-13 18:26:51,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 793 transitions, 92222 flow [2021-08-13 18:26:51,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:51,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:51,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 214 transitions. [2021-08-13 18:26:51,847 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6948051948051948 [2021-08-13 18:26:51,847 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 214 transitions. [2021-08-13 18:26:51,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 214 transitions. [2021-08-13 18:26:51,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:51,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 214 transitions. [2021-08-13 18:26:51,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:51,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:51,848 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:51,848 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 555 predicate places. [2021-08-13 18:26:51,848 INFO L482 AbstractCegarLoop]: Abstraction has has 582 places, 793 transitions, 92222 flow [2021-08-13 18:26:51,848 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:51,848 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:51,848 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:51,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-08-13 18:26:51,848 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:51,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:51,849 INFO L82 PathProgramCache]: Analyzing trace with hash 359962942, now seen corresponding path program 52 times [2021-08-13 18:26:51,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:51,849 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249773143] [2021-08-13 18:26:51,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:51,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:51,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:51,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:51,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:51,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:51,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:51,868 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:26:51,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:26:51,877 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:51,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:51,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:51,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:51,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:51,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:51,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:51,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:51,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:51,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:51,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249773143] [2021-08-13 18:26:51,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249773143] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:51,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:51,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:51,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008781072] [2021-08-13 18:26:51,912 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:51,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:51,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:51,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:51,912 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:51,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 582 places, 793 transitions, 92222 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:51,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:51,913 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:51,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:53,017 INFO L129 PetriNetUnfolder]: 631/2058 cut-off events. [2021-08-13 18:26:53,017 INFO L130 PetriNetUnfolder]: For 121559/126018 co-relation queries the response was YES. [2021-08-13 18:26:53,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73081 conditions, 2058 events. 631/2058 cut-off events. For 121559/126018 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 20307 event pairs, 3 based on Foata normal form. 23/1589 useless extension candidates. Maximal degree in co-relation 70557. Up to 818 conditions per place. [2021-08-13 18:26:53,051 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 418 selfloop transitions, 185 changer transitions 179/792 dead transitions. [2021-08-13 18:26:53,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 792 transitions, 93668 flow [2021-08-13 18:26:53,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:53,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:53,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 213 transitions. [2021-08-13 18:26:53,052 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6915584415584416 [2021-08-13 18:26:53,052 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 213 transitions. [2021-08-13 18:26:53,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 213 transitions. [2021-08-13 18:26:53,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:53,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 213 transitions. [2021-08-13 18:26:53,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.363636363636363) internal successors, (213), 11 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:53,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:53,053 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:53,053 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 565 predicate places. [2021-08-13 18:26:53,053 INFO L482 AbstractCegarLoop]: Abstraction has has 592 places, 792 transitions, 93668 flow [2021-08-13 18:26:53,053 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:53,053 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:53,053 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:53,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-08-13 18:26:53,053 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:53,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:53,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1948827826, now seen corresponding path program 53 times [2021-08-13 18:26:53,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:53,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797133706] [2021-08-13 18:26:53,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:53,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:53,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:53,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:53,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:53,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:53,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:53,068 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:26:53,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:53,074 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:26:53,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:53,081 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:53,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:53,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:53,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:53,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:53,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:53,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:53,103 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:53,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797133706] [2021-08-13 18:26:53,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797133706] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:53,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:53,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:53,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285555937] [2021-08-13 18:26:53,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:53,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:53,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:53,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:53,104 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:53,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 592 places, 792 transitions, 93668 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:53,104 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:53,104 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:53,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:54,153 INFO L129 PetriNetUnfolder]: 631/2056 cut-off events. [2021-08-13 18:26:54,153 INFO L130 PetriNetUnfolder]: For 121149/125693 co-relation queries the response was YES. [2021-08-13 18:26:54,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74227 conditions, 2056 events. 631/2056 cut-off events. For 121149/125693 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 20325 event pairs, 4 based on Foata normal form. 19/1583 useless extension candidates. Maximal degree in co-relation 71728. Up to 817 conditions per place. [2021-08-13 18:26:54,195 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 406 selfloop transitions, 195 changer transitions 180/791 dead transitions. [2021-08-13 18:26:54,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 791 transitions, 95110 flow [2021-08-13 18:26:54,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:54,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:54,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 195 transitions. [2021-08-13 18:26:54,197 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-08-13 18:26:54,197 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 195 transitions. [2021-08-13 18:26:54,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 195 transitions. [2021-08-13 18:26:54,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:54,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 195 transitions. [2021-08-13 18:26:54,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.5) internal successors, (195), 10 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:54,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:54,198 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:54,198 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 574 predicate places. [2021-08-13 18:26:54,198 INFO L482 AbstractCegarLoop]: Abstraction has has 601 places, 791 transitions, 95110 flow [2021-08-13 18:26:54,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:54,198 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:54,198 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:54,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-08-13 18:26:54,199 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:54,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:54,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1178815562, now seen corresponding path program 54 times [2021-08-13 18:26:54,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:54,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145555832] [2021-08-13 18:26:54,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:54,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:54,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:54,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:54,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:54,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:54,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:54,218 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:54,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:54,224 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:54,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:54,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:54,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:54,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:54,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:54,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:54,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:54,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:54,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:54,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145555832] [2021-08-13 18:26:54,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145555832] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:54,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:54,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:54,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550693812] [2021-08-13 18:26:54,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:54,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:54,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:54,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:54,256 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:54,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 791 transitions, 95110 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:54,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:54,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:54,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:55,317 INFO L129 PetriNetUnfolder]: 630/2056 cut-off events. [2021-08-13 18:26:55,317 INFO L130 PetriNetUnfolder]: For 109736/111397 co-relation queries the response was YES. [2021-08-13 18:26:55,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75431 conditions, 2056 events. 630/2056 cut-off events. For 109736/111397 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 20328 event pairs, 7 based on Foata normal form. 11/1575 useless extension candidates. Maximal degree in co-relation 72894. Up to 817 conditions per place. [2021-08-13 18:26:55,344 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 414 selfloop transitions, 186 changer transitions 181/791 dead transitions. [2021-08-13 18:26:55,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 791 transitions, 96672 flow [2021-08-13 18:26:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:26:55,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:26:55,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 231 transitions. [2021-08-13 18:26:55,345 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-08-13 18:26:55,345 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 231 transitions. [2021-08-13 18:26:55,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 231 transitions. [2021-08-13 18:26:55,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:55,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 231 transitions. [2021-08-13 18:26:55,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.25) internal successors, (231), 12 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:55,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:55,346 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:55,346 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 585 predicate places. [2021-08-13 18:26:55,347 INFO L482 AbstractCegarLoop]: Abstraction has has 612 places, 791 transitions, 96672 flow [2021-08-13 18:26:55,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:55,347 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:55,347 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:55,347 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-08-13 18:26:55,347 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:55,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:55,347 INFO L82 PathProgramCache]: Analyzing trace with hash 320846706, now seen corresponding path program 55 times [2021-08-13 18:26:55,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:55,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461812901] [2021-08-13 18:26:55,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:55,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:55,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:55,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:55,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:55,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:55,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:55,371 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:26:55,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:26:55,376 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:26:55,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:55,383 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:26:55,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:26:55,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:55,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:55,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:55,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:55,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:55,406 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:55,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461812901] [2021-08-13 18:26:55,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461812901] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:55,406 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:55,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:55,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56869187] [2021-08-13 18:26:55,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:55,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:55,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:55,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:55,407 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:55,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 791 transitions, 96672 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:55,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:55,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:55,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:56,236 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2021-08-13 18:26:56,528 INFO L129 PetriNetUnfolder]: 630/2055 cut-off events. [2021-08-13 18:26:56,528 INFO L130 PetriNetUnfolder]: For 109625/111299 co-relation queries the response was YES. [2021-08-13 18:26:56,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76580 conditions, 2055 events. 630/2055 cut-off events. For 109625/111299 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 20336 event pairs, 3 based on Foata normal form. 7/1570 useless extension candidates. Maximal degree in co-relation 74071. Up to 816 conditions per place. [2021-08-13 18:26:56,556 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 413 selfloop transitions, 185 changer transitions 182/790 dead transitions. [2021-08-13 18:26:56,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 790 transitions, 98108 flow [2021-08-13 18:26:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:26:56,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:26:56,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 196 transitions. [2021-08-13 18:26:56,557 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7 [2021-08-13 18:26:56,557 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 196 transitions. [2021-08-13 18:26:56,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 196 transitions. [2021-08-13 18:26:56,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:56,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 196 transitions. [2021-08-13 18:26:56,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.6) internal successors, (196), 10 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:56,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:56,557 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:26:56,558 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 594 predicate places. [2021-08-13 18:26:56,558 INFO L482 AbstractCegarLoop]: Abstraction has has 621 places, 790 transitions, 98108 flow [2021-08-13 18:26:56,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:56,558 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:56,558 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:56,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-08-13 18:26:56,558 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:56,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:56,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1758982292, now seen corresponding path program 56 times [2021-08-13 18:26:56,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:56,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933534540] [2021-08-13 18:26:56,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:56,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:56,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:56,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:56,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:56,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:56,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:56,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:56,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:56,579 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:56,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:56,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:56,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:56,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:56,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:56,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:56,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:56,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:56,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:56,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933534540] [2021-08-13 18:26:56,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933534540] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:56,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:56,614 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:56,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707098167] [2021-08-13 18:26:56,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:56,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:56,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:56,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:56,614 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:56,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 790 transitions, 98108 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:56,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:56,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:56,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:57,677 INFO L129 PetriNetUnfolder]: 629/2067 cut-off events. [2021-08-13 18:26:57,678 INFO L130 PetriNetUnfolder]: For 101813/102055 co-relation queries the response was YES. [2021-08-13 18:26:57,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77993 conditions, 2067 events. 629/2067 cut-off events. For 101813/102055 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 20480 event pairs, 3 based on Foata normal form. 8/1582 useless extension candidates. Maximal degree in co-relation 75380. Up to 819 conditions per place. [2021-08-13 18:26:57,705 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 408 selfloop transitions, 192 changer transitions 183/793 dead transitions. [2021-08-13 18:26:57,705 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 793 transitions, 100048 flow [2021-08-13 18:26:57,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:57,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:57,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 216 transitions. [2021-08-13 18:26:57,705 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7012987012987013 [2021-08-13 18:26:57,706 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 216 transitions. [2021-08-13 18:26:57,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 216 transitions. [2021-08-13 18:26:57,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:57,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 216 transitions. [2021-08-13 18:26:57,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.636363636363637) internal successors, (216), 11 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:57,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:57,706 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:57,706 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 604 predicate places. [2021-08-13 18:26:57,706 INFO L482 AbstractCegarLoop]: Abstraction has has 631 places, 793 transitions, 100048 flow [2021-08-13 18:26:57,707 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:57,707 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:57,707 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:57,707 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-08-13 18:26:57,707 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:57,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:57,707 INFO L82 PathProgramCache]: Analyzing trace with hash 768577762, now seen corresponding path program 57 times [2021-08-13 18:26:57,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:57,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614976165] [2021-08-13 18:26:57,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:57,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:57,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:57,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:57,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:57,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:57,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:57,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:57,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:57,727 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:26:57,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:26:57,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:57,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:57,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:57,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:57,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:57,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:57,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:57,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614976165] [2021-08-13 18:26:57,755 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614976165] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:57,755 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:57,755 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:57,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358649175] [2021-08-13 18:26:57,755 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:57,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:57,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:57,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:57,755 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:57,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 631 places, 793 transitions, 100048 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:57,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:57,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:57,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:58,802 INFO L129 PetriNetUnfolder]: 629/2067 cut-off events. [2021-08-13 18:26:58,802 INFO L130 PetriNetUnfolder]: For 118229/120052 co-relation queries the response was YES. [2021-08-13 18:26:58,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79135 conditions, 2067 events. 629/2067 cut-off events. For 118229/120052 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 20566 event pairs, 7 based on Foata normal form. 11/1585 useless extension candidates. Maximal degree in co-relation 76552. Up to 818 conditions per place. [2021-08-13 18:26:58,831 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 407 selfloop transitions, 191 changer transitions 184/792 dead transitions. [2021-08-13 18:26:58,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 792 transitions, 101484 flow [2021-08-13 18:26:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:26:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:26:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 232 transitions. [2021-08-13 18:26:58,838 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2021-08-13 18:26:58,838 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 232 transitions. [2021-08-13 18:26:58,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 232 transitions. [2021-08-13 18:26:58,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:58,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 232 transitions. [2021-08-13 18:26:58,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.333333333333332) internal successors, (232), 12 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:58,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:58,839 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:58,839 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 615 predicate places. [2021-08-13 18:26:58,839 INFO L482 AbstractCegarLoop]: Abstraction has has 642 places, 792 transitions, 101484 flow [2021-08-13 18:26:58,839 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:58,839 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:58,839 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:58,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-08-13 18:26:58,839 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:58,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:58,840 INFO L82 PathProgramCache]: Analyzing trace with hash 226777864, now seen corresponding path program 58 times [2021-08-13 18:26:58,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:58,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322491435] [2021-08-13 18:26:58,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:58,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:58,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:58,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:58,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:58,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:58,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:26:58,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:58,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:26:58,861 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:26:58,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:26:58,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:58,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:26:58,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:58,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:26:58,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:58,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:58,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:26:58,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:26:58,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322491435] [2021-08-13 18:26:58,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322491435] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:26:58,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:26:58,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:26:58,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942363194] [2021-08-13 18:26:58,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:26:58,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:26:58,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:26:58,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:26:58,887 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:26:58,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 792 transitions, 101484 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:58,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:26:58,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:26:58,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:26:59,954 INFO L129 PetriNetUnfolder]: 629/2067 cut-off events. [2021-08-13 18:26:59,955 INFO L130 PetriNetUnfolder]: For 117715/119551 co-relation queries the response was YES. [2021-08-13 18:26:59,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80283 conditions, 2067 events. 629/2067 cut-off events. For 117715/119551 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 20542 event pairs, 3 based on Foata normal form. 7/1581 useless extension candidates. Maximal degree in co-relation 77732. Up to 817 conditions per place. [2021-08-13 18:26:59,984 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 406 selfloop transitions, 190 changer transitions 185/791 dead transitions. [2021-08-13 18:26:59,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 652 places, 791 transitions, 102916 flow [2021-08-13 18:26:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:26:59,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:26:59,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 216 transitions. [2021-08-13 18:26:59,985 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7012987012987013 [2021-08-13 18:26:59,985 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 216 transitions. [2021-08-13 18:26:59,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 216 transitions. [2021-08-13 18:26:59,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:26:59,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 216 transitions. [2021-08-13 18:26:59,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.636363636363637) internal successors, (216), 11 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:59,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:59,986 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:26:59,986 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 625 predicate places. [2021-08-13 18:26:59,986 INFO L482 AbstractCegarLoop]: Abstraction has has 652 places, 791 transitions, 102916 flow [2021-08-13 18:26:59,987 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:26:59,987 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:26:59,987 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:26:59,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-08-13 18:26:59,987 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:26:59,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:26:59,987 INFO L82 PathProgramCache]: Analyzing trace with hash 174262344, now seen corresponding path program 59 times [2021-08-13 18:26:59,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:26:59,987 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990350838] [2021-08-13 18:26:59,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:26:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:26:59,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:59,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:26:59,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:59,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:26:59,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:26:59,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:00,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:00,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:00,008 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:27:00,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:00,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:00,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:00,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:00,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:00,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:00,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:00,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:00,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:00,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990350838] [2021-08-13 18:27:00,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990350838] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:00,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:00,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:00,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166591179] [2021-08-13 18:27:00,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:00,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:00,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:00,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:00,034 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:00,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 791 transitions, 102916 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:00,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:00,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:00,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:01,186 INFO L129 PetriNetUnfolder]: 629/2064 cut-off events. [2021-08-13 18:27:01,186 INFO L130 PetriNetUnfolder]: For 142162/147503 co-relation queries the response was YES. [2021-08-13 18:27:01,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81422 conditions, 2064 events. 629/2064 cut-off events. For 142162/147503 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 20487 event pairs, 4 based on Foata normal form. 23/1594 useless extension candidates. Maximal degree in co-relation 78905. Up to 816 conditions per place. [2021-08-13 18:27:01,222 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 406 selfloop transitions, 188 changer transitions 186/790 dead transitions. [2021-08-13 18:27:01,222 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 790 transitions, 104344 flow [2021-08-13 18:27:01,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:27:01,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:27:01,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 231 transitions. [2021-08-13 18:27:01,223 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-08-13 18:27:01,223 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 231 transitions. [2021-08-13 18:27:01,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 231 transitions. [2021-08-13 18:27:01,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:01,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 231 transitions. [2021-08-13 18:27:01,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.25) internal successors, (231), 12 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:01,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:01,225 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:01,225 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 636 predicate places. [2021-08-13 18:27:01,225 INFO L482 AbstractCegarLoop]: Abstraction has has 663 places, 790 transitions, 104344 flow [2021-08-13 18:27:01,225 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:01,225 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:01,225 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:01,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-08-13 18:27:01,225 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:01,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:01,226 INFO L82 PathProgramCache]: Analyzing trace with hash 264857272, now seen corresponding path program 60 times [2021-08-13 18:27:01,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:01,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577312078] [2021-08-13 18:27:01,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:01,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:01,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:01,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:01,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:01,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:01,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:01,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:01,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:01,249 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:27:01,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:01,258 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:01,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:01,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:01,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:01,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:01,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:01,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:01,285 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:01,285 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577312078] [2021-08-13 18:27:01,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577312078] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:01,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:01,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:01,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439361362] [2021-08-13 18:27:01,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:01,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:01,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:01,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:01,286 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:01,287 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 663 places, 790 transitions, 104344 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:01,287 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:01,287 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:01,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:02,315 INFO L129 PetriNetUnfolder]: 629/2062 cut-off events. [2021-08-13 18:27:02,315 INFO L130 PetriNetUnfolder]: For 141523/146949 co-relation queries the response was YES. [2021-08-13 18:27:02,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82560 conditions, 2062 events. 629/2062 cut-off events. For 141523/146949 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 20462 event pairs, 4 based on Foata normal form. 19/1588 useless extension candidates. Maximal degree in co-relation 80079. Up to 815 conditions per place. [2021-08-13 18:27:02,345 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 406 selfloop transitions, 186 changer transitions 187/789 dead transitions. [2021-08-13 18:27:02,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 789 transitions, 105768 flow [2021-08-13 18:27:02,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:27:02,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:27:02,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 197 transitions. [2021-08-13 18:27:02,346 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7035714285714286 [2021-08-13 18:27:02,346 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 197 transitions. [2021-08-13 18:27:02,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 197 transitions. [2021-08-13 18:27:02,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:02,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 197 transitions. [2021-08-13 18:27:02,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.7) internal successors, (197), 10 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) [2021-08-13 18:27:02,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:02,347 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:02,347 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 645 predicate places. [2021-08-13 18:27:02,347 INFO L482 AbstractCegarLoop]: Abstraction has has 672 places, 789 transitions, 105768 flow [2021-08-13 18:27:02,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:02,347 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:02,347 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:02,347 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-08-13 18:27:02,347 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:02,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:02,348 INFO L82 PathProgramCache]: Analyzing trace with hash 764633442, now seen corresponding path program 61 times [2021-08-13 18:27:02,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:02,348 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541156024] [2021-08-13 18:27:02,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:02,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:02,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:02,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:02,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:02,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:02,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:02,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:02,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:02,371 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:02,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:02,377 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:02,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:02,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:02,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:02,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:02,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:02,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:02,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:02,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541156024] [2021-08-13 18:27:02,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541156024] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:02,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:02,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:02,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999518339] [2021-08-13 18:27:02,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:02,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:02,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:02,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:02,398 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:02,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 789 transitions, 105768 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:02,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:02,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:02,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:03,455 INFO L129 PetriNetUnfolder]: 629/2057 cut-off events. [2021-08-13 18:27:03,456 INFO L130 PetriNetUnfolder]: For 105382/105654 co-relation queries the response was YES. [2021-08-13 18:27:03,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83694 conditions, 2057 events. 629/2057 cut-off events. For 105382/105654 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 20394 event pairs, 3 based on Foata normal form. 8/1572 useless extension candidates. Maximal degree in co-relation 81251. Up to 814 conditions per place. [2021-08-13 18:27:03,485 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 403 selfloop transitions, 187 changer transitions 188/788 dead transitions. [2021-08-13 18:27:03,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 788 transitions, 107188 flow [2021-08-13 18:27:03,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:27:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:27:03,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 196 transitions. [2021-08-13 18:27:03,486 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7 [2021-08-13 18:27:03,486 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 196 transitions. [2021-08-13 18:27:03,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 196 transitions. [2021-08-13 18:27:03,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:03,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 196 transitions. [2021-08-13 18:27:03,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.6) internal successors, (196), 10 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:03,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:03,487 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:03,487 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 654 predicate places. [2021-08-13 18:27:03,487 INFO L482 AbstractCegarLoop]: Abstraction has has 681 places, 788 transitions, 107188 flow [2021-08-13 18:27:03,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:03,487 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:03,488 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:03,488 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-08-13 18:27:03,488 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:03,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:03,488 INFO L82 PathProgramCache]: Analyzing trace with hash -902607258, now seen corresponding path program 62 times [2021-08-13 18:27:03,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:03,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640517382] [2021-08-13 18:27:03,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:03,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:03,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:03,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:03,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:03,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:03,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:03,516 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:27:03,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:03,522 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:03,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:03,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:03,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:03,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:03,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:03,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:03,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:03,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:03,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640517382] [2021-08-13 18:27:03,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640517382] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:03,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:03,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:03,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556400979] [2021-08-13 18:27:03,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:03,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:03,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:03,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:03,555 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:03,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 681 places, 788 transitions, 107188 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:03,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:03,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:03,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:04,543 INFO L129 PetriNetUnfolder]: 641/2136 cut-off events. [2021-08-13 18:27:04,543 INFO L130 PetriNetUnfolder]: For 141067/143160 co-relation queries the response was YES. [2021-08-13 18:27:04,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87525 conditions, 2136 events. 641/2136 cut-off events. For 141067/143160 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 21485 event pairs, 7 based on Foata normal form. 11/1639 useless extension candidates. Maximal degree in co-relation 84611. Up to 838 conditions per place. [2021-08-13 18:27:04,576 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 427 selfloop transitions, 198 changer transitions 189/824 dead transitions. [2021-08-13 18:27:04,576 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 692 places, 824 transitions, 113616 flow [2021-08-13 18:27:04,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:27:04,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:27:04,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 231 transitions. [2021-08-13 18:27:04,577 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-08-13 18:27:04,577 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 231 transitions. [2021-08-13 18:27:04,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 231 transitions. [2021-08-13 18:27:04,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:04,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 231 transitions. [2021-08-13 18:27:04,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.25) internal successors, (231), 12 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:04,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:04,577 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:04,578 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 665 predicate places. [2021-08-13 18:27:04,578 INFO L482 AbstractCegarLoop]: Abstraction has has 692 places, 824 transitions, 113616 flow [2021-08-13 18:27:04,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:04,578 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:04,578 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:04,578 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-08-13 18:27:04,578 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:04,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:04,578 INFO L82 PathProgramCache]: Analyzing trace with hash 7242642, now seen corresponding path program 63 times [2021-08-13 18:27:04,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:04,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981350643] [2021-08-13 18:27:04,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:04,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:04,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:04,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:04,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:04,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:04,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:04,745 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:27:04,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:04,757 INFO L142 QuantifierPusher]: treesize reduction 21, result has 48.8 percent of original size [2021-08-13 18:27:04,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:27:04,766 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:04,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:04,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:04,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:04,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:04,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:04,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:04,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:04,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981350643] [2021-08-13 18:27:04,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981350643] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:04,789 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:04,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:04,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035092072] [2021-08-13 18:27:04,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:04,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:04,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:04,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:04,789 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:04,789 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 692 places, 824 transitions, 113616 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:04,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:04,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:04,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:05,908 INFO L129 PetriNetUnfolder]: 638/2186 cut-off events. [2021-08-13 18:27:05,908 INFO L130 PetriNetUnfolder]: For 157658/159764 co-relation queries the response was YES. [2021-08-13 18:27:05,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89846 conditions, 2186 events. 638/2186 cut-off events. For 157658/159764 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 22377 event pairs, 3 based on Foata normal form. 7/1681 useless extension candidates. Maximal degree in co-relation 86449. Up to 845 conditions per place. [2021-08-13 18:27:05,942 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 438 selfloop transitions, 201 changer transitions 190/839 dead transitions. [2021-08-13 18:27:05,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 701 places, 839 transitions, 117292 flow [2021-08-13 18:27:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:27:05,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:27:05,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 196 transitions. [2021-08-13 18:27:05,943 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7 [2021-08-13 18:27:05,943 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 196 transitions. [2021-08-13 18:27:05,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 196 transitions. [2021-08-13 18:27:05,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:05,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 196 transitions. [2021-08-13 18:27:05,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.6) internal successors, (196), 10 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:05,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:05,944 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:05,944 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 674 predicate places. [2021-08-13 18:27:05,944 INFO L482 AbstractCegarLoop]: Abstraction has has 701 places, 839 transitions, 117292 flow [2021-08-13 18:27:05,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:05,944 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:05,944 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:05,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-08-13 18:27:05,944 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:05,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:05,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1019935174, now seen corresponding path program 64 times [2021-08-13 18:27:05,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:05,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304463425] [2021-08-13 18:27:05,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:05,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:05,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:05,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:05,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:05,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:05,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:05,959 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:27:05,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:05,964 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:05,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:05,972 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:05,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:05,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:05,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:05,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:05,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:05,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:05,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304463425] [2021-08-13 18:27:05,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304463425] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:05,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:05,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:05,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777720066] [2021-08-13 18:27:05,996 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:05,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:05,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:05,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:05,996 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:05,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 701 places, 839 transitions, 117292 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:05,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:05,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:05,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:07,427 INFO L129 PetriNetUnfolder]: 638/2180 cut-off events. [2021-08-13 18:27:07,428 INFO L130 PetriNetUnfolder]: For 187033/193195 co-relation queries the response was YES. [2021-08-13 18:27:07,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91023 conditions, 2180 events. 638/2180 cut-off events. For 187033/193195 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 22259 event pairs, 3 based on Foata normal form. 15/1683 useless extension candidates. Maximal degree in co-relation 87656. Up to 844 conditions per place. [2021-08-13 18:27:07,462 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 439 selfloop transitions, 198 changer transitions 191/838 dead transitions. [2021-08-13 18:27:07,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 710 places, 838 transitions, 118806 flow [2021-08-13 18:27:07,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:27:07,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:27:07,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 197 transitions. [2021-08-13 18:27:07,463 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7035714285714286 [2021-08-13 18:27:07,463 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 197 transitions. [2021-08-13 18:27:07,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 197 transitions. [2021-08-13 18:27:07,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:07,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 197 transitions. [2021-08-13 18:27:07,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.7) internal successors, (197), 10 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) [2021-08-13 18:27:07,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:07,464 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:07,464 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 683 predicate places. [2021-08-13 18:27:07,465 INFO L482 AbstractCegarLoop]: Abstraction has has 710 places, 838 transitions, 118806 flow [2021-08-13 18:27:07,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:07,465 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:07,465 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:07,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-08-13 18:27:07,465 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:07,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:07,465 INFO L82 PathProgramCache]: Analyzing trace with hash -610671722, now seen corresponding path program 65 times [2021-08-13 18:27:07,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:07,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500784501] [2021-08-13 18:27:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:07,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:07,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:07,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:07,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:07,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:07,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:07,482 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:27:07,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:07,488 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:27:07,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:07,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:07,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:07,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:07,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:07,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:07,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:07,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:07,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:07,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500784501] [2021-08-13 18:27:07,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500784501] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:07,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:07,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:07,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801437899] [2021-08-13 18:27:07,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:07,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:07,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:07,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:07,518 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:07,518 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 710 places, 838 transitions, 118806 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:07,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:07,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:07,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:08,862 INFO L129 PetriNetUnfolder]: 637/2183 cut-off events. [2021-08-13 18:27:08,862 INFO L130 PetriNetUnfolder]: For 189334/195671 co-relation queries the response was YES. [2021-08-13 18:27:08,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92287 conditions, 2183 events. 637/2183 cut-off events. For 189334/195671 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 22307 event pairs, 3 based on Foata normal form. 11/1682 useless extension candidates. Maximal degree in co-relation 88876. Up to 844 conditions per place. [2021-08-13 18:27:08,895 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 426 selfloop transitions, 210 changer transitions 192/838 dead transitions. [2021-08-13 18:27:08,895 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 720 places, 838 transitions, 120462 flow [2021-08-13 18:27:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:27:08,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:27:08,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 214 transitions. [2021-08-13 18:27:08,895 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6948051948051948 [2021-08-13 18:27:08,896 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 214 transitions. [2021-08-13 18:27:08,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 214 transitions. [2021-08-13 18:27:08,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:08,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 214 transitions. [2021-08-13 18:27:08,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:08,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:08,896 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:08,896 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 693 predicate places. [2021-08-13 18:27:08,896 INFO L482 AbstractCegarLoop]: Abstraction has has 720 places, 838 transitions, 120462 flow [2021-08-13 18:27:08,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:08,897 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:08,897 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:08,897 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-08-13 18:27:08,897 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:08,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:08,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1877287286, now seen corresponding path program 66 times [2021-08-13 18:27:08,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:08,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721631270] [2021-08-13 18:27:08,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:08,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:08,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:08,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:08,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:08,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:08,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:08,917 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:27:08,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:08,924 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-08-13 18:27:08,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:27:08,931 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:08,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:08,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:08,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:08,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:08,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:08,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:08,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:08,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721631270] [2021-08-13 18:27:08,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721631270] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:08,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:08,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:08,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806046708] [2021-08-13 18:27:08,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:08,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:08,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:08,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:08,956 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:08,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 720 places, 838 transitions, 120462 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:08,956 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:08,956 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:08,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:10,369 INFO L129 PetriNetUnfolder]: 637/2178 cut-off events. [2021-08-13 18:27:10,369 INFO L130 PetriNetUnfolder]: For 146244/146546 co-relation queries the response was YES. [2021-08-13 18:27:10,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93469 conditions, 2178 events. 637/2178 cut-off events. For 146244/146546 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 22191 event pairs, 3 based on Foata normal form. 8/1674 useless extension candidates. Maximal degree in co-relation 90091. Up to 843 conditions per place. [2021-08-13 18:27:10,408 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 424 selfloop transitions, 210 changer transitions 193/837 dead transitions. [2021-08-13 18:27:10,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 729 places, 837 transitions, 121970 flow [2021-08-13 18:27:10,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:27:10,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:27:10,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 195 transitions. [2021-08-13 18:27:10,409 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-08-13 18:27:10,409 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 195 transitions. [2021-08-13 18:27:10,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 195 transitions. [2021-08-13 18:27:10,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:10,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 195 transitions. [2021-08-13 18:27:10,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.5) internal successors, (195), 10 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:10,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:10,410 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:10,410 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 702 predicate places. [2021-08-13 18:27:10,410 INFO L482 AbstractCegarLoop]: Abstraction has has 729 places, 837 transitions, 121970 flow [2021-08-13 18:27:10,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:10,410 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:10,410 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:10,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-08-13 18:27:10,410 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:10,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:10,424 INFO L82 PathProgramCache]: Analyzing trace with hash -2080701952, now seen corresponding path program 67 times [2021-08-13 18:27:10,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:10,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027203740] [2021-08-13 18:27:10,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:10,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:10,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:10,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:10,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:10,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:10,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:10,438 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-08-13 18:27:10,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:10,443 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:27:10,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:10,450 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:10,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:10,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:10,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:10,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:10,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:10,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:10,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:10,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027203740] [2021-08-13 18:27:10,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027203740] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:10,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:10,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:10,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347122769] [2021-08-13 18:27:10,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:10,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:10,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:10,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:10,473 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:10,473 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 729 places, 837 transitions, 121970 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:10,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:10,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:10,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:11,728 INFO L129 PetriNetUnfolder]: 637/2180 cut-off events. [2021-08-13 18:27:11,728 INFO L130 PetriNetUnfolder]: For 197861/204671 co-relation queries the response was YES. [2021-08-13 18:27:11,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94649 conditions, 2180 events. 637/2180 cut-off events. For 197861/204671 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 22263 event pairs, 3 based on Foata normal form. 15/1683 useless extension candidates. Maximal degree in co-relation 91306. Up to 842 conditions per place. [2021-08-13 18:27:11,851 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 425 selfloop transitions, 207 changer transitions 194/836 dead transitions. [2021-08-13 18:27:11,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 738 places, 836 transitions, 123474 flow [2021-08-13 18:27:11,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:27:11,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:27:11,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 196 transitions. [2021-08-13 18:27:11,852 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7 [2021-08-13 18:27:11,852 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 196 transitions. [2021-08-13 18:27:11,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 196 transitions. [2021-08-13 18:27:11,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:11,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 196 transitions. [2021-08-13 18:27:11,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.6) internal successors, (196), 10 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:11,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:11,853 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:11,853 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 711 predicate places. [2021-08-13 18:27:11,853 INFO L482 AbstractCegarLoop]: Abstraction has has 738 places, 836 transitions, 123474 flow [2021-08-13 18:27:11,853 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:11,853 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:11,853 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:11,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-08-13 18:27:11,853 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:11,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:11,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1224371964, now seen corresponding path program 68 times [2021-08-13 18:27:11,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:11,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770342554] [2021-08-13 18:27:11,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:11,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:11,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:11,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:11,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:11,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:11,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:11,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:11,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:11,886 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:27:11,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:27:11,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:11,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:11,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:11,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:11,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:11,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:11,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:11,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:11,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770342554] [2021-08-13 18:27:11,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770342554] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:11,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:11,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:11,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203501089] [2021-08-13 18:27:11,916 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:11,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:11,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:11,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:11,916 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:11,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 738 places, 836 transitions, 123474 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:11,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:11,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:11,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:13,169 INFO L129 PetriNetUnfolder]: 637/2174 cut-off events. [2021-08-13 18:27:13,169 INFO L130 PetriNetUnfolder]: For 171465/173882 co-relation queries the response was YES. [2021-08-13 18:27:13,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95819 conditions, 2174 events. 637/2174 cut-off events. For 171465/173882 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 22164 event pairs, 7 based on Foata normal form. 11/1673 useless extension candidates. Maximal degree in co-relation 92513. Up to 841 conditions per place. [2021-08-13 18:27:13,205 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 429 selfloop transitions, 201 changer transitions 195/835 dead transitions. [2021-08-13 18:27:13,205 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 748 places, 835 transitions, 124974 flow [2021-08-13 18:27:13,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:27:13,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:27:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 216 transitions. [2021-08-13 18:27:13,206 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7012987012987013 [2021-08-13 18:27:13,206 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 216 transitions. [2021-08-13 18:27:13,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 216 transitions. [2021-08-13 18:27:13,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:13,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 216 transitions. [2021-08-13 18:27:13,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.636363636363637) internal successors, (216), 11 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:13,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:13,207 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:13,207 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 721 predicate places. [2021-08-13 18:27:13,207 INFO L482 AbstractCegarLoop]: Abstraction has has 748 places, 835 transitions, 124974 flow [2021-08-13 18:27:13,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:13,207 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:13,207 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:13,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-08-13 18:27:13,207 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:13,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:13,208 INFO L82 PathProgramCache]: Analyzing trace with hash -783513844, now seen corresponding path program 69 times [2021-08-13 18:27:13,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:13,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892737162] [2021-08-13 18:27:13,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:13,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:13,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:13,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:13,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:13,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:13,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:13,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:13,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:13,230 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:27:13,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:27:13,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:13,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:13,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:13,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:13,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:13,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:13,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:13,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:13,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892737162] [2021-08-13 18:27:13,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892737162] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:13,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:13,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:13,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087822442] [2021-08-13 18:27:13,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:13,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:13,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:13,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:13,263 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:13,263 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 748 places, 835 transitions, 124974 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:13,263 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:13,263 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:13,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:14,710 INFO L129 PetriNetUnfolder]: 636/2186 cut-off events. [2021-08-13 18:27:14,710 INFO L130 PetriNetUnfolder]: For 179047/181518 co-relation queries the response was YES. [2021-08-13 18:27:14,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97319 conditions, 2186 events. 636/2186 cut-off events. For 179047/181518 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 22325 event pairs, 7 based on Foata normal form. 11/1684 useless extension candidates. Maximal degree in co-relation 93892. Up to 844 conditions per place. [2021-08-13 18:27:14,743 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 431 selfloop transitions, 201 changer transitions 196/838 dead transitions. [2021-08-13 18:27:14,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 759 places, 838 transitions, 127082 flow [2021-08-13 18:27:14,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:27:14,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:27:14,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 232 transitions. [2021-08-13 18:27:14,745 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2021-08-13 18:27:14,745 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 232 transitions. [2021-08-13 18:27:14,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 232 transitions. [2021-08-13 18:27:14,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:14,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 232 transitions. [2021-08-13 18:27:14,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.333333333333332) internal successors, (232), 12 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:14,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:14,745 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:14,745 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 732 predicate places. [2021-08-13 18:27:14,746 INFO L482 AbstractCegarLoop]: Abstraction has has 759 places, 838 transitions, 127082 flow [2021-08-13 18:27:14,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:14,746 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:14,746 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:14,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-08-13 18:27:14,746 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:14,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:14,746 INFO L82 PathProgramCache]: Analyzing trace with hash -702114788, now seen corresponding path program 70 times [2021-08-13 18:27:14,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:14,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854386955] [2021-08-13 18:27:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:14,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:14,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:14,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:14,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:14,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:14,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:14,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:14,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:14,763 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:14,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:14,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:14,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:14,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:14,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:14,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:14,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:14,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:14,787 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:14,787 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854386955] [2021-08-13 18:27:14,787 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854386955] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:14,787 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:14,787 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:14,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042622336] [2021-08-13 18:27:14,787 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:14,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:14,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:14,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:14,788 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:14,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 759 places, 838 transitions, 127082 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:14,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:14,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:14,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:16,222 INFO L129 PetriNetUnfolder]: 636/2184 cut-off events. [2021-08-13 18:27:16,222 INFO L130 PetriNetUnfolder]: For 180561/183086 co-relation queries the response was YES. [2021-08-13 18:27:16,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98493 conditions, 2184 events. 636/2184 cut-off events. For 180561/183086 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 22298 event pairs, 7 based on Foata normal form. 11/1682 useless extension candidates. Maximal degree in co-relation 95105. Up to 843 conditions per place. [2021-08-13 18:27:16,257 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 433 selfloop transitions, 197 changer transitions 197/837 dead transitions. [2021-08-13 18:27:16,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 770 places, 837 transitions, 128582 flow [2021-08-13 18:27:16,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:27:16,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:27:16,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 233 transitions. [2021-08-13 18:27:16,258 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6934523809523809 [2021-08-13 18:27:16,258 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 233 transitions. [2021-08-13 18:27:16,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 233 transitions. [2021-08-13 18:27:16,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:16,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 233 transitions. [2021-08-13 18:27:16,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.416666666666668) internal successors, (233), 12 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:16,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:16,259 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:16,259 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 743 predicate places. [2021-08-13 18:27:16,259 INFO L482 AbstractCegarLoop]: Abstraction has has 770 places, 837 transitions, 128582 flow [2021-08-13 18:27:16,259 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:16,259 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:16,259 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:16,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-08-13 18:27:16,259 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:16,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:16,259 INFO L82 PathProgramCache]: Analyzing trace with hash -754630308, now seen corresponding path program 71 times [2021-08-13 18:27:16,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:16,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051666074] [2021-08-13 18:27:16,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:16,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:16,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:16,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:16,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:16,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:16,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:16,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:16,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:16,276 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:27:16,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:16,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:16,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:16,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:16,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:16,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:16,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:16,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:16,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:16,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051666074] [2021-08-13 18:27:16,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051666074] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:16,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:16,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:16,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499065942] [2021-08-13 18:27:16,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:16,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:16,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:16,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:16,307 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:16,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 770 places, 837 transitions, 128582 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:16,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:16,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:16,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:17,603 INFO L129 PetriNetUnfolder]: 636/2187 cut-off events. [2021-08-13 18:27:17,603 INFO L130 PetriNetUnfolder]: For 210660/218293 co-relation queries the response was YES. [2021-08-13 18:27:17,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99680 conditions, 2187 events. 636/2187 cut-off events. For 210660/218293 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 22392 event pairs, 3 based on Foata normal form. 11/1685 useless extension candidates. Maximal degree in co-relation 96333. Up to 842 conditions per place. [2021-08-13 18:27:17,650 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 429 selfloop transitions, 199 changer transitions 198/836 dead transitions. [2021-08-13 18:27:17,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 780 places, 836 transitions, 130078 flow [2021-08-13 18:27:17,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:27:17,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:27:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 217 transitions. [2021-08-13 18:27:17,651 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7045454545454546 [2021-08-13 18:27:17,651 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 217 transitions. [2021-08-13 18:27:17,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 217 transitions. [2021-08-13 18:27:17,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:17,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 217 transitions. [2021-08-13 18:27:17,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.727272727272727) internal successors, (217), 11 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:17,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:17,652 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:17,652 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 753 predicate places. [2021-08-13 18:27:17,652 INFO L482 AbstractCegarLoop]: Abstraction has has 780 places, 836 transitions, 130078 flow [2021-08-13 18:27:17,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:17,652 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:17,652 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:17,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-08-13 18:27:17,652 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:17,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:17,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1308396796, now seen corresponding path program 72 times [2021-08-13 18:27:17,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:17,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691743258] [2021-08-13 18:27:17,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:17,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:17,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:17,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:17,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:17,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:17,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:17,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:17,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:17,681 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:17,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:17,689 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:17,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:17,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:17,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:17,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:17,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:17,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:17,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691743258] [2021-08-13 18:27:17,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691743258] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:17,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:17,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:17,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987011653] [2021-08-13 18:27:17,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:17,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:17,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:17,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:17,712 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:17,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 780 places, 836 transitions, 130078 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:17,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:17,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:17,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:18,995 INFO L129 PetriNetUnfolder]: 636/2186 cut-off events. [2021-08-13 18:27:18,995 INFO L130 PetriNetUnfolder]: For 216812/224702 co-relation queries the response was YES. [2021-08-13 18:27:19,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100857 conditions, 2186 events. 636/2186 cut-off events. For 216812/224702 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 22434 event pairs, 3 based on Foata normal form. 15/1688 useless extension candidates. Maximal degree in co-relation 97553. Up to 841 conditions per place. [2021-08-13 18:27:19,031 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 432 selfloop transitions, 194 changer transitions 199/835 dead transitions. [2021-08-13 18:27:19,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 835 transitions, 131570 flow [2021-08-13 18:27:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:27:19,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:27:19,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2021-08-13 18:27:19,032 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-08-13 18:27:19,032 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 198 transitions. [2021-08-13 18:27:19,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 198 transitions. [2021-08-13 18:27:19,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:19,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 198 transitions. [2021-08-13 18:27:19,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.8) internal successors, (198), 10 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) [2021-08-13 18:27:19,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:19,033 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:19,033 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 762 predicate places. [2021-08-13 18:27:19,033 INFO L482 AbstractCegarLoop]: Abstraction has has 789 places, 835 transitions, 131570 flow [2021-08-13 18:27:19,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:19,033 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:19,033 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:19,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-08-13 18:27:19,034 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:19,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:19,034 INFO L82 PathProgramCache]: Analyzing trace with hash -752004532, now seen corresponding path program 73 times [2021-08-13 18:27:19,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:19,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848033222] [2021-08-13 18:27:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:19,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:19,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:19,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:19,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:19,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:19,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:19,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:19,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:19,051 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:27:19,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:19,058 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:19,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:19,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:19,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:19,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:19,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:19,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:19,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848033222] [2021-08-13 18:27:19,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848033222] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:19,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:19,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:19,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313364651] [2021-08-13 18:27:19,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:19,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:19,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:19,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:19,085 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:19,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 789 places, 835 transitions, 131570 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:19,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:19,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:19,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:20,299 INFO L129 PetriNetUnfolder]: 636/2182 cut-off events. [2021-08-13 18:27:20,300 INFO L130 PetriNetUnfolder]: For 219322/227428 co-relation queries the response was YES. [2021-08-13 18:27:20,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102025 conditions, 2182 events. 636/2182 cut-off events. For 219322/227428 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 22315 event pairs, 3 based on Foata normal form. 15/1684 useless extension candidates. Maximal degree in co-relation 98766. Up to 840 conditions per place. [2021-08-13 18:27:20,335 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 428 selfloop transitions, 196 changer transitions 200/834 dead transitions. [2021-08-13 18:27:20,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 798 places, 834 transitions, 133058 flow [2021-08-13 18:27:20,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:27:20,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:27:20,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2021-08-13 18:27:20,336 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-08-13 18:27:20,336 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 198 transitions. [2021-08-13 18:27:20,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 198 transitions. [2021-08-13 18:27:20,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:20,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 198 transitions. [2021-08-13 18:27:20,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.8) internal successors, (198), 10 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) [2021-08-13 18:27:20,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:20,337 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:20,337 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 771 predicate places. [2021-08-13 18:27:20,337 INFO L482 AbstractCegarLoop]: Abstraction has has 798 places, 834 transitions, 133058 flow [2021-08-13 18:27:20,337 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:20,337 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:20,337 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:20,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-08-13 18:27:20,337 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:20,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:20,338 INFO L82 PathProgramCache]: Analyzing trace with hash 2134887898, now seen corresponding path program 74 times [2021-08-13 18:27:20,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:20,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428570762] [2021-08-13 18:27:20,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:20,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:20,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:20,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:20,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:20,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:20,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:20,361 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:27:20,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:27:20,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:20,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:27:20,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:20,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:20,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:20,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:20,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:20,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:20,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:20,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428570762] [2021-08-13 18:27:20,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428570762] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:20,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:20,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:20,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758270726] [2021-08-13 18:27:20,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:20,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:20,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:20,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:20,399 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:20,399 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 798 places, 834 transitions, 133058 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:20,399 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:20,399 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:20,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:21,846 INFO L129 PetriNetUnfolder]: 635/2214 cut-off events. [2021-08-13 18:27:21,846 INFO L130 PetriNetUnfolder]: For 234947/243269 co-relation queries the response was YES. [2021-08-13 18:27:21,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104135 conditions, 2214 events. 635/2214 cut-off events. For 234947/243269 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 22838 event pairs, 3 based on Foata normal form. 15/1713 useless extension candidates. Maximal degree in co-relation 100583. Up to 850 conditions per place. [2021-08-13 18:27:21,891 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 429 selfloop transitions, 204 changer transitions 201/844 dead transitions. [2021-08-13 18:27:21,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 810 places, 844 transitions, 136348 flow [2021-08-13 18:27:21,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 18:27:21,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 18:27:21,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 246 transitions. [2021-08-13 18:27:21,892 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6758241758241759 [2021-08-13 18:27:21,892 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 246 transitions. [2021-08-13 18:27:21,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 246 transitions. [2021-08-13 18:27:21,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:21,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 246 transitions. [2021-08-13 18:27:21,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 18.923076923076923) internal successors, (246), 13 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:21,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:21,893 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:21,893 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 783 predicate places. [2021-08-13 18:27:21,893 INFO L482 AbstractCegarLoop]: Abstraction has has 810 places, 844 transitions, 136348 flow [2021-08-13 18:27:21,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:21,893 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:21,894 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:21,894 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-08-13 18:27:21,894 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:21,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:21,894 INFO L82 PathProgramCache]: Analyzing trace with hash 346990804, now seen corresponding path program 75 times [2021-08-13 18:27:21,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:21,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261997994] [2021-08-13 18:27:21,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:21,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:21,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:21,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:21,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:21,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:21,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:21,915 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:27:21,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:21,921 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:21,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:21,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:21,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:21,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:21,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:21,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:21,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:21,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:21,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:21,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261997994] [2021-08-13 18:27:21,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261997994] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:21,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:21,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:21,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961660643] [2021-08-13 18:27:21,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:21,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:21,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:21,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:21,953 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:21,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 810 places, 844 transitions, 136348 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:21,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:21,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:21,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:23,469 INFO L129 PetriNetUnfolder]: 635/2215 cut-off events. [2021-08-13 18:27:23,469 INFO L130 PetriNetUnfolder]: For 237576/246114 co-relation queries the response was YES. [2021-08-13 18:27:23,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105318 conditions, 2215 events. 635/2215 cut-off events. For 237576/246114 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 22888 event pairs, 3 based on Foata normal form. 15/1714 useless extension candidates. Maximal degree in co-relation 101811. Up to 849 conditions per place. [2021-08-13 18:27:23,515 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 437 selfloop transitions, 194 changer transitions 202/843 dead transitions. [2021-08-13 18:27:23,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 823 places, 843 transitions, 137850 flow [2021-08-13 18:27:23,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 18:27:23,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 18:27:23,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 260 transitions. [2021-08-13 18:27:23,516 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6632653061224489 [2021-08-13 18:27:23,516 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 260 transitions. [2021-08-13 18:27:23,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 260 transitions. [2021-08-13 18:27:23,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:23,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 260 transitions. [2021-08-13 18:27:23,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 18.571428571428573) internal successors, (260), 14 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:23,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:23,517 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:23,517 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 796 predicate places. [2021-08-13 18:27:23,517 INFO L482 AbstractCegarLoop]: Abstraction has has 823 places, 843 transitions, 137850 flow [2021-08-13 18:27:23,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:23,517 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:23,517 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:23,517 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-08-13 18:27:23,517 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:23,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:23,517 INFO L82 PathProgramCache]: Analyzing trace with hash 453050988, now seen corresponding path program 76 times [2021-08-13 18:27:23,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:23,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378809192] [2021-08-13 18:27:23,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:23,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:23,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:23,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:23,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:23,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:23,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:23,540 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:27:23,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:27:23,549 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:27:23,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:27:23,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:23,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:23,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:23,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:23,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:23,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:23,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:23,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378809192] [2021-08-13 18:27:23,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378809192] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:23,581 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:23,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:23,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121773706] [2021-08-13 18:27:23,582 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:23,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:23,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:23,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:23,582 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:23,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 823 places, 843 transitions, 137850 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:23,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:23,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:23,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:25,078 INFO L129 PetriNetUnfolder]: 635/2207 cut-off events. [2021-08-13 18:27:25,078 INFO L130 PetriNetUnfolder]: For 172489/172851 co-relation queries the response was YES. [2021-08-13 18:27:25,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106491 conditions, 2207 events. 635/2207 cut-off events. For 172489/172851 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 22713 event pairs, 3 based on Foata normal form. 8/1699 useless extension candidates. Maximal degree in co-relation 103031. Up to 848 conditions per place. [2021-08-13 18:27:25,116 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 424 selfloop transitions, 205 changer transitions 203/842 dead transitions. [2021-08-13 18:27:25,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 834 places, 842 transitions, 139348 flow [2021-08-13 18:27:25,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:27:25,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:27:25,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 231 transitions. [2021-08-13 18:27:25,117 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-08-13 18:27:25,117 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 231 transitions. [2021-08-13 18:27:25,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 231 transitions. [2021-08-13 18:27:25,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:25,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 231 transitions. [2021-08-13 18:27:25,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.25) internal successors, (231), 12 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:25,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:25,117 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:25,118 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 807 predicate places. [2021-08-13 18:27:25,118 INFO L482 AbstractCegarLoop]: Abstraction has has 834 places, 842 transitions, 139348 flow [2021-08-13 18:27:25,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:25,118 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:25,118 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:25,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-08-13 18:27:25,118 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:25,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:25,118 INFO L82 PathProgramCache]: Analyzing trace with hash -39876998, now seen corresponding path program 77 times [2021-08-13 18:27:25,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:25,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950757642] [2021-08-13 18:27:25,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:25,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:25,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:25,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:25,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:25,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:25,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:25,130 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:27:25,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:25,135 INFO L142 QuantifierPusher]: treesize reduction 21, result has 48.8 percent of original size [2021-08-13 18:27:25,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:27:25,144 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:25,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:25,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:25,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:25,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:25,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:25,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:25,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:25,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950757642] [2021-08-13 18:27:25,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950757642] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:25,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:25,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:25,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245370387] [2021-08-13 18:27:25,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:25,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:25,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:25,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:25,168 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:25,168 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 834 places, 842 transitions, 139348 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:25,168 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:25,168 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:25,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:26,497 INFO L129 PetriNetUnfolder]: 635/2204 cut-off events. [2021-08-13 18:27:26,497 INFO L130 PetriNetUnfolder]: For 204123/207026 co-relation queries the response was YES. [2021-08-13 18:27:26,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107656 conditions, 2204 events. 635/2204 cut-off events. For 204123/207026 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 22637 event pairs, 7 based on Foata normal form. 11/1699 useless extension candidates. Maximal degree in co-relation 104245. Up to 847 conditions per place. [2021-08-13 18:27:26,536 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 430 selfloop transitions, 197 changer transitions 204/841 dead transitions. [2021-08-13 18:27:26,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 844 places, 841 transitions, 140842 flow [2021-08-13 18:27:26,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:27:26,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:27:26,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 210 transitions. [2021-08-13 18:27:26,537 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818 [2021-08-13 18:27:26,537 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 210 transitions. [2021-08-13 18:27:26,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 210 transitions. [2021-08-13 18:27:26,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:26,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 210 transitions. [2021-08-13 18:27:26,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.09090909090909) internal successors, (210), 11 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:26,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:26,538 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:26,538 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 817 predicate places. [2021-08-13 18:27:26,538 INFO L482 AbstractCegarLoop]: Abstraction has has 844 places, 841 transitions, 140842 flow [2021-08-13 18:27:26,538 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:26,538 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:26,538 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:26,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-08-13 18:27:26,538 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:26,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:26,539 INFO L82 PathProgramCache]: Analyzing trace with hash 884846382, now seen corresponding path program 78 times [2021-08-13 18:27:26,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:26,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530273179] [2021-08-13 18:27:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:26,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:26,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:26,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:26,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:26,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:26,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:26,556 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:27:26,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:26,562 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:26,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:26,571 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:26,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:26,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:26,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:26,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:26,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:26,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:26,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530273179] [2021-08-13 18:27:26,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530273179] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:26,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:26,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:26,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141026030] [2021-08-13 18:27:26,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:26,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:26,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:26,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:26,596 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:26,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 844 places, 841 transitions, 140842 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:26,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:26,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:26,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:28,072 INFO L129 PetriNetUnfolder]: 635/2201 cut-off events. [2021-08-13 18:27:28,073 INFO L130 PetriNetUnfolder]: For 173237/173611 co-relation queries the response was YES. [2021-08-13 18:27:28,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108835 conditions, 2201 events. 635/2201 cut-off events. For 173237/173611 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 22632 event pairs, 3 based on Foata normal form. 8/1693 useless extension candidates. Maximal degree in co-relation 105475. Up to 846 conditions per place. [2021-08-13 18:27:28,110 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 433 selfloop transitions, 192 changer transitions 205/840 dead transitions. [2021-08-13 18:27:28,110 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 854 places, 840 transitions, 142332 flow [2021-08-13 18:27:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:27:28,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:27:28,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 211 transitions. [2021-08-13 18:27:28,111 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.685064935064935 [2021-08-13 18:27:28,111 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 211 transitions. [2021-08-13 18:27:28,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 211 transitions. [2021-08-13 18:27:28,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:28,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 211 transitions. [2021-08-13 18:27:28,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.181818181818183) internal successors, (211), 11 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:28,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:28,112 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:28,112 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 827 predicate places. [2021-08-13 18:27:28,112 INFO L482 AbstractCegarLoop]: Abstraction has has 854 places, 840 transitions, 142332 flow [2021-08-13 18:27:28,113 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:28,113 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:28,113 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:28,113 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-08-13 18:27:28,113 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:28,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:28,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1232789084, now seen corresponding path program 79 times [2021-08-13 18:27:28,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:28,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350513336] [2021-08-13 18:27:28,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:28,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:28,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:28,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:28,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:28,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:28,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:28,146 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:27:28,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:28,153 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:28,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:28,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:28,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:28,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:28,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:28,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:28,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:28,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:28,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350513336] [2021-08-13 18:27:28,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350513336] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:28,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:28,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:28,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87943547] [2021-08-13 18:27:28,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:28,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:28,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:28,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:28,185 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:28,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 854 places, 840 transitions, 142332 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:28,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:28,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:28,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:29,921 INFO L129 PetriNetUnfolder]: 635/2200 cut-off events. [2021-08-13 18:27:29,921 INFO L130 PetriNetUnfolder]: For 206547/209558 co-relation queries the response was YES. [2021-08-13 18:27:29,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110000 conditions, 2200 events. 635/2200 cut-off events. For 206547/209558 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 22618 event pairs, 7 based on Foata normal form. 11/1695 useless extension candidates. Maximal degree in co-relation 106693. Up to 845 conditions per place. [2021-08-13 18:27:29,970 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 431 selfloop transitions, 192 changer transitions 206/839 dead transitions. [2021-08-13 18:27:29,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 867 places, 839 transitions, 143818 flow [2021-08-13 18:27:29,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 18:27:29,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 18:27:29,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 260 transitions. [2021-08-13 18:27:29,971 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6632653061224489 [2021-08-13 18:27:29,971 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 260 transitions. [2021-08-13 18:27:29,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 260 transitions. [2021-08-13 18:27:29,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:29,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 260 transitions. [2021-08-13 18:27:29,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 18.571428571428573) internal successors, (260), 14 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:29,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:29,972 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:29,972 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 840 predicate places. [2021-08-13 18:27:29,972 INFO L482 AbstractCegarLoop]: Abstraction has has 867 places, 839 transitions, 143818 flow [2021-08-13 18:27:29,972 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:29,972 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:29,973 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:29,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-08-13 18:27:29,973 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:29,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:29,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1746264176, now seen corresponding path program 80 times [2021-08-13 18:27:29,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:29,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449828396] [2021-08-13 18:27:29,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:29,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:29,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:29,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:29,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:29,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:29,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:29,990 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:27:29,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:29,997 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:29,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:30,005 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:30,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:30,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:30,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:30,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:30,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:30,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:30,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:30,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449828396] [2021-08-13 18:27:30,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449828396] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:30,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:30,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:30,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481515020] [2021-08-13 18:27:30,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:30,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:30,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:30,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:30,032 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:30,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 867 places, 839 transitions, 143818 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:30,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:30,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:30,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:31,675 INFO L129 PetriNetUnfolder]: 635/2201 cut-off events. [2021-08-13 18:27:31,676 INFO L130 PetriNetUnfolder]: For 204079/207103 co-relation queries the response was YES. [2021-08-13 18:27:31,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111179 conditions, 2201 events. 635/2201 cut-off events. For 204079/207103 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 22651 event pairs, 3 based on Foata normal form. 7/1692 useless extension candidates. Maximal degree in co-relation 107927. Up to 844 conditions per place. [2021-08-13 18:27:31,733 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 430 selfloop transitions, 191 changer transitions 207/838 dead transitions. [2021-08-13 18:27:31,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 877 places, 838 transitions, 145300 flow [2021-08-13 18:27:31,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:27:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:27:31,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 211 transitions. [2021-08-13 18:27:31,735 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.685064935064935 [2021-08-13 18:27:31,735 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 211 transitions. [2021-08-13 18:27:31,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 211 transitions. [2021-08-13 18:27:31,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:31,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 211 transitions. [2021-08-13 18:27:31,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.181818181818183) internal successors, (211), 11 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:31,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:31,736 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:31,736 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 850 predicate places. [2021-08-13 18:27:31,736 INFO L482 AbstractCegarLoop]: Abstraction has has 877 places, 838 transitions, 145300 flow [2021-08-13 18:27:31,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:31,736 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:31,736 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:31,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-08-13 18:27:31,737 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:31,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:31,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1109364668, now seen corresponding path program 81 times [2021-08-13 18:27:31,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:31,737 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124501387] [2021-08-13 18:27:31,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:31,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:31,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:31,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:31,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:31,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:31,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:31,754 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:27:31,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:31,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:31,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:27:31,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:31,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:31,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:31,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:31,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:31,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:31,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:31,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:31,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124501387] [2021-08-13 18:27:31,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124501387] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:31,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:31,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:31,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580341377] [2021-08-13 18:27:31,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:31,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:31,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:31,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:31,796 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:31,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 877 places, 838 transitions, 145300 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:31,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:31,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:31,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:33,225 INFO L129 PetriNetUnfolder]: 635/2196 cut-off events. [2021-08-13 18:27:33,225 INFO L130 PetriNetUnfolder]: For 208323/211442 co-relation queries the response was YES. [2021-08-13 18:27:33,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112336 conditions, 2196 events. 635/2196 cut-off events. For 208323/211442 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 22584 event pairs, 8 based on Foata normal form. 11/1691 useless extension candidates. Maximal degree in co-relation 109141. Up to 843 conditions per place. [2021-08-13 18:27:33,267 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 423 selfloop transitions, 196 changer transitions 208/837 dead transitions. [2021-08-13 18:27:33,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 889 places, 837 transitions, 146778 flow [2021-08-13 18:27:33,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 18:27:33,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 18:27:33,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 247 transitions. [2021-08-13 18:27:33,268 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2021-08-13 18:27:33,268 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 247 transitions. [2021-08-13 18:27:33,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 247 transitions. [2021-08-13 18:27:33,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:33,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 247 transitions. [2021-08-13 18:27:33,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 19.0) internal successors, (247), 13 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:33,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:33,268 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:33,269 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 862 predicate places. [2021-08-13 18:27:33,269 INFO L482 AbstractCegarLoop]: Abstraction has has 889 places, 837 transitions, 146778 flow [2021-08-13 18:27:33,269 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:33,269 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:33,269 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:33,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-08-13 18:27:33,269 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:33,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:33,269 INFO L82 PathProgramCache]: Analyzing trace with hash 988280790, now seen corresponding path program 82 times [2021-08-13 18:27:33,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:33,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762523431] [2021-08-13 18:27:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:33,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:33,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:33,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:33,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:33,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:33,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:33,291 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-08-13 18:27:33,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:27:33,301 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:27:33,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:27:33,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:33,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:33,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:33,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:33,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:33,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:33,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:33,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:33,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762523431] [2021-08-13 18:27:33,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762523431] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:33,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:33,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:33,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866897073] [2021-08-13 18:27:33,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:33,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:33,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:33,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:33,334 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:33,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 889 places, 837 transitions, 146778 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:33,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:33,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:33,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:34,827 INFO L129 PetriNetUnfolder]: 635/2194 cut-off events. [2021-08-13 18:27:34,827 INFO L130 PetriNetUnfolder]: For 209277/212450 co-relation queries the response was YES. [2021-08-13 18:27:34,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113502 conditions, 2194 events. 635/2194 cut-off events. For 209277/212450 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 22557 event pairs, 8 based on Foata normal form. 11/1689 useless extension candidates. Maximal degree in co-relation 110366. Up to 842 conditions per place. [2021-08-13 18:27:34,867 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 416 selfloop transitions, 201 changer transitions 209/836 dead transitions. [2021-08-13 18:27:34,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 899 places, 836 transitions, 148252 flow [2021-08-13 18:27:34,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:27:34,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:27:34,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 213 transitions. [2021-08-13 18:27:34,868 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6915584415584416 [2021-08-13 18:27:34,868 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 213 transitions. [2021-08-13 18:27:34,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 213 transitions. [2021-08-13 18:27:34,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:34,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 213 transitions. [2021-08-13 18:27:34,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.363636363636363) internal successors, (213), 11 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:34,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:34,869 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:34,869 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 872 predicate places. [2021-08-13 18:27:34,869 INFO L482 AbstractCegarLoop]: Abstraction has has 899 places, 836 transitions, 148252 flow [2021-08-13 18:27:34,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:34,869 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:34,869 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:34,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-08-13 18:27:34,869 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:34,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:34,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1246010848, now seen corresponding path program 83 times [2021-08-13 18:27:34,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:34,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749925382] [2021-08-13 18:27:34,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:34,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:34,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:34,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:34,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:34,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:34,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:34,888 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:27:34,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:34,893 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:34,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:34,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:34,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:34,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:34,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:34,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:34,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:34,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:34,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:34,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749925382] [2021-08-13 18:27:34,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749925382] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:34,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:34,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:34,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439401826] [2021-08-13 18:27:34,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:34,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:34,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:34,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:34,918 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:34,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 899 places, 836 transitions, 148252 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:34,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:34,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:34,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:36,387 INFO L129 PetriNetUnfolder]: 635/2197 cut-off events. [2021-08-13 18:27:36,387 INFO L130 PetriNetUnfolder]: For 256286/266552 co-relation queries the response was YES. [2021-08-13 18:27:36,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114675 conditions, 2197 events. 635/2197 cut-off events. For 256286/266552 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 22615 event pairs, 3 based on Foata normal form. 15/1696 useless extension candidates. Maximal degree in co-relation 111600. Up to 841 conditions per place. [2021-08-13 18:27:36,425 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 421 selfloop transitions, 194 changer transitions 210/835 dead transitions. [2021-08-13 18:27:36,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 910 places, 835 transitions, 149722 flow [2021-08-13 18:27:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:27:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:27:36,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 231 transitions. [2021-08-13 18:27:36,426 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-08-13 18:27:36,426 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 231 transitions. [2021-08-13 18:27:36,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 231 transitions. [2021-08-13 18:27:36,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:36,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 231 transitions. [2021-08-13 18:27:36,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.25) internal successors, (231), 12 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:36,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:36,427 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:36,427 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 883 predicate places. [2021-08-13 18:27:36,427 INFO L482 AbstractCegarLoop]: Abstraction has has 910 places, 835 transitions, 149722 flow [2021-08-13 18:27:36,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:36,427 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:36,427 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:36,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-08-13 18:27:36,427 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:36,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:36,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1834483174, now seen corresponding path program 84 times [2021-08-13 18:27:36,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:36,427 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192748485] [2021-08-13 18:27:36,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:36,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:36,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:36,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:36,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:36,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:36,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:36,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:36,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:36,446 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:36,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:36,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:36,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:36,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:36,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:36,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:36,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:36,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:36,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:36,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192748485] [2021-08-13 18:27:36,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192748485] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:36,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:36,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:36,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628475146] [2021-08-13 18:27:36,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:36,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:36,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:36,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:36,471 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:36,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 910 places, 835 transitions, 149722 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:36,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:36,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:36,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:37,942 INFO L129 PetriNetUnfolder]: 635/2198 cut-off events. [2021-08-13 18:27:37,942 INFO L130 PetriNetUnfolder]: For 173125/173535 co-relation queries the response was YES. [2021-08-13 18:27:37,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115848 conditions, 2198 events. 635/2198 cut-off events. For 173125/173535 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 22630 event pairs, 3 based on Foata normal form. 8/1690 useless extension candidates. Maximal degree in co-relation 112836. Up to 840 conditions per place. [2021-08-13 18:27:37,981 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 415 selfloop transitions, 198 changer transitions 211/834 dead transitions. [2021-08-13 18:27:37,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 834 transitions, 151188 flow [2021-08-13 18:27:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:27:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:27:37,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 233 transitions. [2021-08-13 18:27:37,982 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6934523809523809 [2021-08-13 18:27:37,982 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 233 transitions. [2021-08-13 18:27:37,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 233 transitions. [2021-08-13 18:27:37,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:37,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 233 transitions. [2021-08-13 18:27:37,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.416666666666668) internal successors, (233), 12 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:37,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:37,983 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:37,983 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 894 predicate places. [2021-08-13 18:27:37,983 INFO L482 AbstractCegarLoop]: Abstraction has has 921 places, 834 transitions, 151188 flow [2021-08-13 18:27:37,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:37,983 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:37,983 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:37,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-08-13 18:27:37,984 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:37,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:37,984 INFO L82 PathProgramCache]: Analyzing trace with hash 2123020352, now seen corresponding path program 85 times [2021-08-13 18:27:37,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:37,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170368572] [2021-08-13 18:27:37,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:37,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:37,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:37,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:37,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:37,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:37,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:37,996 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-08-13 18:27:37,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:38,001 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:38,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:38,009 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:38,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:38,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:38,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:38,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:38,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:38,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:38,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:38,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170368572] [2021-08-13 18:27:38,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170368572] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:38,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:38,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:38,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257095759] [2021-08-13 18:27:38,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:38,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:38,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:38,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:38,034 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:38,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 834 transitions, 151188 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:38,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:38,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:38,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:39,737 INFO L129 PetriNetUnfolder]: 635/2188 cut-off events. [2021-08-13 18:27:39,737 INFO L130 PetriNetUnfolder]: For 211197/214532 co-relation queries the response was YES. [2021-08-13 18:27:39,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116985 conditions, 2188 events. 635/2188 cut-off events. For 211197/214532 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 22499 event pairs, 7 based on Foata normal form. 11/1683 useless extension candidates. Maximal degree in co-relation 114038. Up to 839 conditions per place. [2021-08-13 18:27:39,778 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 418 selfloop transitions, 193 changer transitions 212/833 dead transitions. [2021-08-13 18:27:39,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 833 transitions, 152650 flow [2021-08-13 18:27:39,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:27:39,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:27:39,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 196 transitions. [2021-08-13 18:27:39,780 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7 [2021-08-13 18:27:39,780 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 196 transitions. [2021-08-13 18:27:39,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 196 transitions. [2021-08-13 18:27:39,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:39,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 196 transitions. [2021-08-13 18:27:39,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.6) internal successors, (196), 10 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:39,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:39,781 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:39,781 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 903 predicate places. [2021-08-13 18:27:39,781 INFO L482 AbstractCegarLoop]: Abstraction has has 930 places, 833 transitions, 152650 flow [2021-08-13 18:27:39,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:39,781 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:39,781 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:39,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-08-13 18:27:39,782 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:39,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:39,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1613652846, now seen corresponding path program 86 times [2021-08-13 18:27:39,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:39,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161697600] [2021-08-13 18:27:39,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:39,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:39,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:39,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:39,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:39,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:39,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:39,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:39,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:39,807 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-08-13 18:27:39,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:39,814 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:39,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:39,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:39,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:39,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:39,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:39,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:39,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161697600] [2021-08-13 18:27:39,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161697600] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:39,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:39,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:39,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487847973] [2021-08-13 18:27:39,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:39,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:39,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:39,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:39,947 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:39,947 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 833 transitions, 152650 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:39,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:39,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:39,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:41,349 INFO L129 PetriNetUnfolder]: 635/2191 cut-off events. [2021-08-13 18:27:41,349 INFO L130 PetriNetUnfolder]: For 256607/267480 co-relation queries the response was YES. [2021-08-13 18:27:41,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118152 conditions, 2191 events. 635/2191 cut-off events. For 256607/267480 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 22576 event pairs, 4 based on Foata normal form. 11/1686 useless extension candidates. Maximal degree in co-relation 115272. Up to 838 conditions per place. [2021-08-13 18:27:41,387 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 412 selfloop transitions, 197 changer transitions 213/832 dead transitions. [2021-08-13 18:27:41,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 939 places, 832 transitions, 154108 flow [2021-08-13 18:27:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:27:41,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:27:41,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2021-08-13 18:27:41,387 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-08-13 18:27:41,387 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 198 transitions. [2021-08-13 18:27:41,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 198 transitions. [2021-08-13 18:27:41,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:41,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 198 transitions. [2021-08-13 18:27:41,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.8) internal successors, (198), 10 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) [2021-08-13 18:27:41,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:41,388 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:41,388 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 912 predicate places. [2021-08-13 18:27:41,388 INFO L482 AbstractCegarLoop]: Abstraction has has 939 places, 832 transitions, 154108 flow [2021-08-13 18:27:41,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:41,388 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:41,388 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:41,389 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-08-13 18:27:41,389 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:41,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:41,389 INFO L82 PathProgramCache]: Analyzing trace with hash 906429060, now seen corresponding path program 87 times [2021-08-13 18:27:41,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:41,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542179509] [2021-08-13 18:27:41,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:41,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:41,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:41,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:41,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:41,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:41,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:41,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:41,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:41,406 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:27:41,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:27:41,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:41,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:41,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:41,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:41,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:41,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:41,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:41,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542179509] [2021-08-13 18:27:41,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542179509] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:41,437 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:41,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:41,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612755756] [2021-08-13 18:27:41,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:41,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:41,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:41,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:41,438 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:41,438 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 939 places, 832 transitions, 154108 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:41,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:41,438 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:41,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:43,136 INFO L129 PetriNetUnfolder]: 635/2191 cut-off events. [2021-08-13 18:27:43,137 INFO L130 PetriNetUnfolder]: For 170861/171289 co-relation queries the response was YES. [2021-08-13 18:27:43,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119319 conditions, 2191 events. 635/2191 cut-off events. For 170861/171289 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 22569 event pairs, 3 based on Foata normal form. 8/1683 useless extension candidates. Maximal degree in co-relation 116508. Up to 837 conditions per place. [2021-08-13 18:27:43,195 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 409 selfloop transitions, 198 changer transitions 214/831 dead transitions. [2021-08-13 18:27:43,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 950 places, 831 transitions, 155562 flow [2021-08-13 18:27:43,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-13 18:27:43,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-08-13 18:27:43,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 232 transitions. [2021-08-13 18:27:43,196 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2021-08-13 18:27:43,196 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 232 transitions. [2021-08-13 18:27:43,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 232 transitions. [2021-08-13 18:27:43,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:43,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 232 transitions. [2021-08-13 18:27:43,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 19.333333333333332) internal successors, (232), 12 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:43,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:43,198 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:43,198 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 923 predicate places. [2021-08-13 18:27:43,198 INFO L482 AbstractCegarLoop]: Abstraction has has 950 places, 831 transitions, 155562 flow [2021-08-13 18:27:43,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:43,198 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:43,198 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:43,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-08-13 18:27:43,198 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:43,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:43,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1380652428, now seen corresponding path program 88 times [2021-08-13 18:27:43,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:43,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372600562] [2021-08-13 18:27:43,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:43,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:43,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:43,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:43,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:43,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:43,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:43,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:43,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:43,252 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-08-13 18:27:43,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:27:43,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:43,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:43,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:43,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:43,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:43,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:43,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:43,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372600562] [2021-08-13 18:27:43,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372600562] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:43,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:43,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:43,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034748274] [2021-08-13 18:27:43,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:43,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:43,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:43,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:43,287 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:43,287 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 831 transitions, 155562 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:43,287 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:43,287 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:43,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:45,054 INFO L129 PetriNetUnfolder]: 635/2188 cut-off events. [2021-08-13 18:27:45,054 INFO L130 PetriNetUnfolder]: For 207535/210991 co-relation queries the response was YES. [2021-08-13 18:27:45,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120461 conditions, 2188 events. 635/2188 cut-off events. For 207535/210991 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 22571 event pairs, 3 based on Foata normal form. 7/1679 useless extension candidates. Maximal degree in co-relation 117721. Up to 836 conditions per place. [2021-08-13 18:27:45,099 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 409 selfloop transitions, 196 changer transitions 215/830 dead transitions. [2021-08-13 18:27:45,100 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 960 places, 830 transitions, 157012 flow [2021-08-13 18:27:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:27:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:27:45,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 215 transitions. [2021-08-13 18:27:45,100 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.698051948051948 [2021-08-13 18:27:45,101 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 215 transitions. [2021-08-13 18:27:45,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 215 transitions. [2021-08-13 18:27:45,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:45,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 215 transitions. [2021-08-13 18:27:45,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.545454545454547) internal successors, (215), 11 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:45,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:45,102 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:45,102 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 933 predicate places. [2021-08-13 18:27:45,102 INFO L482 AbstractCegarLoop]: Abstraction has has 960 places, 830 transitions, 157012 flow [2021-08-13 18:27:45,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:45,102 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:45,102 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:45,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-08-13 18:27:45,102 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:45,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:45,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1025907524, now seen corresponding path program 89 times [2021-08-13 18:27:45,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:45,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858531028] [2021-08-13 18:27:45,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:45,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:45,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:45,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:45,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:45,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:45,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:45,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:45,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:45,131 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:27:45,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:45,139 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-08-13 18:27:45,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:27:45,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:45,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:45,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:45,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:45,163 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:45,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858531028] [2021-08-13 18:27:45,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858531028] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:45,163 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:45,164 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:45,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162643] [2021-08-13 18:27:45,164 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:45,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:45,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:45,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:45,164 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:45,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 830 transitions, 157012 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:45,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:45,165 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:45,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:46,612 INFO L129 PetriNetUnfolder]: 635/2185 cut-off events. [2021-08-13 18:27:46,613 INFO L130 PetriNetUnfolder]: For 261029/272550 co-relation queries the response was YES. [2021-08-13 18:27:46,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121611 conditions, 2185 events. 635/2185 cut-off events. For 261029/272550 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 22495 event pairs, 3 based on Foata normal form. 11/1680 useless extension candidates. Maximal degree in co-relation 118944. Up to 835 conditions per place. [2021-08-13 18:27:46,661 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 406 selfloop transitions, 197 changer transitions 216/829 dead transitions. [2021-08-13 18:27:46,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 969 places, 829 transitions, 158458 flow [2021-08-13 18:27:46,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:27:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 18:27:46,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 197 transitions. [2021-08-13 18:27:46,662 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7035714285714286 [2021-08-13 18:27:46,662 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 197 transitions. [2021-08-13 18:27:46,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 197 transitions. [2021-08-13 18:27:46,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:46,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 197 transitions. [2021-08-13 18:27:46,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.7) internal successors, (197), 10 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) [2021-08-13 18:27:46,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:46,663 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 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) [2021-08-13 18:27:46,663 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 942 predicate places. [2021-08-13 18:27:46,663 INFO L482 AbstractCegarLoop]: Abstraction has has 969 places, 829 transitions, 158458 flow [2021-08-13 18:27:46,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:46,663 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:46,663 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:46,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-08-13 18:27:46,663 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:46,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:46,664 INFO L82 PathProgramCache]: Analyzing trace with hash 910932110, now seen corresponding path program 90 times [2021-08-13 18:27:46,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:46,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750680015] [2021-08-13 18:27:46,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:46,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:46,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:46,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:46,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-13 18:27:46,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:46,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:27:46,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:46,838 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2021-08-13 18:27:46,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:46,848 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-08-13 18:27:46,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:46,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:46,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:46,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:46,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:46,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:46,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:46,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:46,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:46,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750680015] [2021-08-13 18:27:46,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750680015] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:46,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:46,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 18:27:46,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784205160] [2021-08-13 18:27:46,879 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:27:46,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:46,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:27:46,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:27:46,880 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 28 [2021-08-13 18:27:46,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 969 places, 829 transitions, 158458 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:46,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:46,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 28 [2021-08-13 18:27:46,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:48,531 INFO L129 PetriNetUnfolder]: 635/2182 cut-off events. [2021-08-13 18:27:48,531 INFO L130 PetriNetUnfolder]: For 262271/274008 co-relation queries the response was YES. [2021-08-13 18:27:48,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122760 conditions, 2182 events. 635/2182 cut-off events. For 262271/274008 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 22482 event pairs, 3 based on Foata normal form. 11/1677 useless extension candidates. Maximal degree in co-relation 120168. Up to 834 conditions per place. [2021-08-13 18:27:48,584 INFO L132 encePairwiseOnDemand]: 15/28 looper letters, 405 selfloop transitions, 196 changer transitions 217/828 dead transitions. [2021-08-13 18:27:48,584 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 979 places, 828 transitions, 159900 flow [2021-08-13 18:27:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 18:27:48,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 18:27:48,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 214 transitions. [2021-08-13 18:27:48,585 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6948051948051948 [2021-08-13 18:27:48,586 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 214 transitions. [2021-08-13 18:27:48,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 214 transitions. [2021-08-13 18:27:48,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:48,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 214 transitions. [2021-08-13 18:27:48,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.454545454545453) internal successors, (214), 11 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:48,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:48,586 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:48,587 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 952 predicate places. [2021-08-13 18:27:48,587 INFO L482 AbstractCegarLoop]: Abstraction has has 979 places, 828 transitions, 159900 flow [2021-08-13 18:27:48,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 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) [2021-08-13 18:27:48,587 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:48,587 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:48,587 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-08-13 18:27:48,587 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:48,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:48,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1199927548, now seen corresponding path program 1 times [2021-08-13 18:27:48,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:48,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760053789] [2021-08-13 18:27:48,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:48,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:48,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:48,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:48,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:48,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:27:48,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:48,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:48,625 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:48,625 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760053789] [2021-08-13 18:27:48,625 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760053789] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:27:48,625 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920611112] [2021-08-13 18:27:48,625 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 [2021-08-13 18:27:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:48,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-13 18:27:48,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:27:48,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:48,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:48,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:48,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:48,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:48,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:48,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:48,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:48,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:48,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:48,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:48,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:48,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:48,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:48,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:27:48,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:48,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:48,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:27:48,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,815 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-08-13 18:27:48,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:48,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:27:48,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-08-13 18:27:48,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:48,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:27:48,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:27:48,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:48,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,840 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:27:48,844 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:48,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:48,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,854 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:27:48,855 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:48,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:48,858 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:27:48,859 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:48,859 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-08-13 18:27:48,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:48,882 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-08-13 18:27:48,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:48,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:48,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:48,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:48,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:48,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920611112] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:27:48,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:27:48,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-08-13 18:27:48,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128554645] [2021-08-13 18:27:48,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 18:27:48,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:48,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 18:27:48,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-13 18:27:48,885 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 28 [2021-08-13 18:27:48,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 979 places, 828 transitions, 159900 flow. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:48,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:48,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 28 [2021-08-13 18:27:48,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:51,214 INFO L129 PetriNetUnfolder]: 709/2410 cut-off events. [2021-08-13 18:27:51,215 INFO L130 PetriNetUnfolder]: For 242495/242953 co-relation queries the response was YES. [2021-08-13 18:27:51,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137350 conditions, 2410 events. 709/2410 cut-off events. For 242495/242953 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 25154 event pairs, 10 based on Foata normal form. 10/1851 useless extension candidates. Maximal degree in co-relation 134007. Up to 947 conditions per place. [2021-08-13 18:27:51,291 INFO L132 encePairwiseOnDemand]: 21/28 looper letters, 279 selfloop transitions, 168 changer transitions 245/901 dead transitions. [2021-08-13 18:27:51,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 985 places, 901 transitions, 175128 flow [2021-08-13 18:27:51,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 18:27:51,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 18:27:51,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 163 transitions. [2021-08-13 18:27:51,292 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8316326530612245 [2021-08-13 18:27:51,292 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 163 transitions. [2021-08-13 18:27:51,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 163 transitions. [2021-08-13 18:27:51,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:51,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 163 transitions. [2021-08-13 18:27:51,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:51,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:51,293 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:51,294 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 958 predicate places. [2021-08-13 18:27:51,294 INFO L482 AbstractCegarLoop]: Abstraction has has 985 places, 901 transitions, 175128 flow [2021-08-13 18:27:51,294 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:51,294 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:51,294 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:51,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2021-08-13 18:27:51,515 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:51,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:51,515 INFO L82 PathProgramCache]: Analyzing trace with hash -299317659, now seen corresponding path program 1 times [2021-08-13 18:27:51,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:51,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812613520] [2021-08-13 18:27:51,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:51,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:51,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:27:51,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:27:51,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:51,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:51,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:51,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812613520] [2021-08-13 18:27:51,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812613520] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:27:51,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231615797] [2021-08-13 18:27:51,549 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 [2021-08-13 18:27:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:51,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-13 18:27:51,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:27:51,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:51,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:51,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:51,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:51,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:51,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:51,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:51,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:27:51,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:51,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:51,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:27:51,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,627 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-08-13 18:27:51,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:51,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:27:51,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-08-13 18:27:51,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:51,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:27:51,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:27:51,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:51,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,644 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:27:51,645 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:51,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:51,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:51,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,649 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:27:51,649 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:51,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:51,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:51,653 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:27:51,654 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:51,654 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-08-13 18:27:51,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:51,677 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-08-13 18:27:51,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:51,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:51,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:51,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:51,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:51,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:51,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231615797] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:27:51,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:27:51,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-08-13 18:27:51,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588728960] [2021-08-13 18:27:51,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 18:27:51,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:51,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 18:27:51,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-13 18:27:51,679 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 28 [2021-08-13 18:27:51,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 985 places, 901 transitions, 175128 flow. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:51,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:51,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 28 [2021-08-13 18:27:51,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:53,592 INFO L129 PetriNetUnfolder]: 811/2731 cut-off events. [2021-08-13 18:27:53,592 INFO L130 PetriNetUnfolder]: For 448336/461135 co-relation queries the response was YES. [2021-08-13 18:27:53,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156939 conditions, 2731 events. 811/2731 cut-off events. For 448336/461135 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 29054 event pairs, 16 based on Foata normal form. 26/2110 useless extension candidates. Maximal degree in co-relation 152722. Up to 1101 conditions per place. [2021-08-13 18:27:53,804 INFO L132 encePairwiseOnDemand]: 21/28 looper letters, 287 selfloop transitions, 175 changer transitions 274/977 dead transitions. [2021-08-13 18:27:53,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 991 places, 977 transitions, 191008 flow [2021-08-13 18:27:53,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 18:27:53,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 18:27:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 163 transitions. [2021-08-13 18:27:53,805 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8316326530612245 [2021-08-13 18:27:53,805 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 163 transitions. [2021-08-13 18:27:53,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 163 transitions. [2021-08-13 18:27:53,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:53,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 163 transitions. [2021-08-13 18:27:53,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:53,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:53,806 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:53,806 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 964 predicate places. [2021-08-13 18:27:53,806 INFO L482 AbstractCegarLoop]: Abstraction has has 991 places, 977 transitions, 191008 flow [2021-08-13 18:27:53,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:53,806 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:53,806 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:54,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:27:54,021 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:54,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:54,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1345095009, now seen corresponding path program 2 times [2021-08-13 18:27:54,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:54,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284476055] [2021-08-13 18:27:54,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:54,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:54,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:54,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:54,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:54,040 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-08-13 18:27:54,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:27:54,057 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-08-13 18:27:54,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:27:54,073 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-08-13 18:27:54,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:54,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:54,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:27:54,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:54,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:54,086 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:54,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284476055] [2021-08-13 18:27:54,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284476055] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:54,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:54,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 18:27:54,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971152383] [2021-08-13 18:27:54,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 18:27:54,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:54,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 18:27:54,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-13 18:27:54,087 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 28 [2021-08-13 18:27:54,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 991 places, 977 transitions, 191008 flow. Second operand has 7 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) [2021-08-13 18:27:54,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:54,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 28 [2021-08-13 18:27:54,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:56,330 INFO L129 PetriNetUnfolder]: 837/2811 cut-off events. [2021-08-13 18:27:56,330 INFO L130 PetriNetUnfolder]: For 333478/335754 co-relation queries the response was YES. [2021-08-13 18:27:56,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164187 conditions, 2811 events. 837/2811 cut-off events. For 333478/335754 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 30029 event pairs, 17 based on Foata normal form. 24/2154 useless extension candidates. Maximal degree in co-relation 159914. Up to 1159 conditions per place. [2021-08-13 18:27:56,491 INFO L132 encePairwiseOnDemand]: 21/28 looper letters, 475 selfloop transitions, 162 changer transitions 331/1009 dead transitions. [2021-08-13 18:27:56,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 997 places, 1009 transitions, 199104 flow [2021-08-13 18:27:56,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 18:27:56,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 18:27:56,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions. [2021-08-13 18:27:56,505 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8010204081632653 [2021-08-13 18:27:56,505 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 157 transitions. [2021-08-13 18:27:56,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 157 transitions. [2021-08-13 18:27:56,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:56,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 157 transitions. [2021-08-13 18:27:56,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 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) [2021-08-13 18:27:56,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:56,506 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:56,506 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 970 predicate places. [2021-08-13 18:27:56,506 INFO L482 AbstractCegarLoop]: Abstraction has has 997 places, 1009 transitions, 199104 flow [2021-08-13 18:27:56,507 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 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) [2021-08-13 18:27:56,507 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:56,507 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:56,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-08-13 18:27:56,507 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:56,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:56,507 INFO L82 PathProgramCache]: Analyzing trace with hash -312150649, now seen corresponding path program 1 times [2021-08-13 18:27:56,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:56,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971804465] [2021-08-13 18:27:56,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:56,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:56,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:56,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:27:56,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:56,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:27:56,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:56,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:56,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:56,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971804465] [2021-08-13 18:27:56,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971804465] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:27:56,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360173758] [2021-08-13 18:27:56,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-08-13 18:27:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:56,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:27:56,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:27:56,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:56,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:56,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:56,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:56,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:56,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:56,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:56,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:27:56,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:56,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:56,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:27:56,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:56,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:56,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:27:56,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:56,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:56,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:56,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:56,628 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size [2021-08-13 18:27:56,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:56,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:27:56,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 18:27:56,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:56,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:27:56,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:27:56,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:56,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,638 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:27:56,639 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:56,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:27:56,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:27:56,642 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:27:56,642 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:56,643 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:27:56,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:27:56,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:56,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:27:56,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:27:56,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:27:56,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:27:56,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:27:56,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:56,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:27:56,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:27:56,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:27:56,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:27:56,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:27:56,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:27:56,687 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:27:56,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:56,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:56,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:56,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:56,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:56,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360173758] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:27:56,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:27:56,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-08-13 18:27:56,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497224179] [2021-08-13 18:27:56,689 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 18:27:56,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:56,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 18:27:56,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-08-13 18:27:56,690 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:27:56,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 997 places, 1009 transitions, 199104 flow. Second operand has 11 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) [2021-08-13 18:27:56,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:56,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:27:56,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:27:59,374 INFO L129 PetriNetUnfolder]: 901/2978 cut-off events. [2021-08-13 18:27:59,374 INFO L130 PetriNetUnfolder]: For 431904/441822 co-relation queries the response was YES. [2021-08-13 18:27:59,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176753 conditions, 2978 events. 901/2978 cut-off events. For 431904/441822 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 31910 event pairs, 15 based on Foata normal form. 41/2289 useless extension candidates. Maximal degree in co-relation 171810. Up to 1229 conditions per place. [2021-08-13 18:27:59,608 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 595 selfloop transitions, 136 changer transitions 334/1075 dead transitions. [2021-08-13 18:27:59,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1004 places, 1075 transitions, 214052 flow [2021-08-13 18:27:59,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:27:59,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:27:59,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-08-13 18:27:59,609 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7633928571428571 [2021-08-13 18:27:59,609 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-08-13 18:27:59,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-08-13 18:27:59,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:27:59,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-08-13 18:27:59,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:59,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:59,609 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:27:59,610 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 977 predicate places. [2021-08-13 18:27:59,610 INFO L482 AbstractCegarLoop]: Abstraction has has 1004 places, 1075 transitions, 214052 flow [2021-08-13 18:27:59,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 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) [2021-08-13 18:27:59,610 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:27:59,610 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:27:59,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2021-08-13 18:27:59,817 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:27:59,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:27:59,817 INFO L82 PathProgramCache]: Analyzing trace with hash -324185338, now seen corresponding path program 2 times [2021-08-13 18:27:59,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:27:59,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153115052] [2021-08-13 18:27:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:27:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:27:59,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:59,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:59,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:59,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:27:59,835 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-08-13 18:27:59,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:27:59,855 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-08-13 18:27:59,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:27:59,880 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-08-13 18:27:59,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:27:59,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:59,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:27:59,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:27:59,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:27:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:27:59,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:27:59,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153115052] [2021-08-13 18:27:59,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153115052] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:27:59,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:27:59,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 18:27:59,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529568015] [2021-08-13 18:27:59,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 18:27:59,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:27:59,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 18:27:59,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-13 18:27:59,899 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 28 [2021-08-13 18:27:59,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1004 places, 1075 transitions, 214052 flow. Second operand has 7 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) [2021-08-13 18:27:59,899 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:27:59,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 28 [2021-08-13 18:27:59,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:02,629 INFO L129 PetriNetUnfolder]: 931/3084 cut-off events. [2021-08-13 18:28:02,629 INFO L130 PetriNetUnfolder]: For 414250/419504 co-relation queries the response was YES. [2021-08-13 18:28:02,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185122 conditions, 3084 events. 931/3084 cut-off events. For 414250/419504 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 33305 event pairs, 16 based on Foata normal form. 14/2333 useless extension candidates. Maximal degree in co-relation 180115. Up to 1295 conditions per place. [2021-08-13 18:28:02,815 INFO L132 encePairwiseOnDemand]: 21/28 looper letters, 519 selfloop transitions, 160 changer transitions 399/1111 dead transitions. [2021-08-13 18:28:02,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1010 places, 1111 transitions, 223280 flow [2021-08-13 18:28:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 18:28:02,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 18:28:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions. [2021-08-13 18:28:02,816 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8010204081632653 [2021-08-13 18:28:02,816 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 157 transitions. [2021-08-13 18:28:02,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 157 transitions. [2021-08-13 18:28:02,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:02,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 157 transitions. [2021-08-13 18:28:02,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 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) [2021-08-13 18:28:02,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:02,817 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:02,817 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 983 predicate places. [2021-08-13 18:28:02,817 INFO L482 AbstractCegarLoop]: Abstraction has has 1010 places, 1111 transitions, 223280 flow [2021-08-13 18:28:02,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 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) [2021-08-13 18:28:02,817 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:02,817 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:02,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-08-13 18:28:02,818 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:02,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:02,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1016285249, now seen corresponding path program 2 times [2021-08-13 18:28:02,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:02,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640195900] [2021-08-13 18:28:02,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:02,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:02,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:02,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:02,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:02,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:02,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:02,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:02,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640195900] [2021-08-13 18:28:02,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640195900] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:02,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442289770] [2021-08-13 18:28:02,878 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 [2021-08-13 18:28:02,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 18:28:02,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:28:02,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:28:02,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:28:02,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:02,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:02,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:02,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:02,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:02,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:02,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:02,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:02,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:02,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:02,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:02,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:02,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:02,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:02,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:02,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:02,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:02,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:02,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:02,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:02,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:02,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:02,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:02,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:02,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:02,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:02,956 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:28:02,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:02,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:02,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:28:02,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:02,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:02,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:02,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:02,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,964 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:28:02,965 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:02,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:02,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:02,969 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:02,970 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:02,971 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:28:02,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:02,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:02,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:02,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:02,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:02,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:02,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:02,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:28:02,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:02,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:02,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:02,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:03,000 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:28:03,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:03,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:03,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:03,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:03,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:03,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:03,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:03,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442289770] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:03,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:28:03,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-08-13 18:28:03,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604621463] [2021-08-13 18:28:03,003 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-08-13 18:28:03,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:03,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-13 18:28:03,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-08-13 18:28:03,004 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:28:03,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1010 places, 1111 transitions, 223280 flow. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2021-08-13 18:28:03,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:03,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:28:03,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:05,889 INFO L129 PetriNetUnfolder]: 995/3256 cut-off events. [2021-08-13 18:28:05,889 INFO L130 PetriNetUnfolder]: For 451969/461857 co-relation queries the response was YES. [2021-08-13 18:28:05,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198091 conditions, 3256 events. 995/3256 cut-off events. For 451969/461857 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 35251 event pairs, 20 based on Foata normal form. 41/2485 useless extension candidates. Maximal degree in co-relation 192396. Up to 1365 conditions per place. [2021-08-13 18:28:05,949 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 624 selfloop transitions, 141 changer transitions 402/1177 dead transitions. [2021-08-13 18:28:05,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1017 places, 1177 transitions, 238696 flow [2021-08-13 18:28:05,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:28:05,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:28:05,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-08-13 18:28:05,950 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7723214285714286 [2021-08-13 18:28:05,950 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-08-13 18:28:05,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-08-13 18:28:05,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:05,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-08-13 18:28:05,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:05,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:05,950 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:05,950 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 990 predicate places. [2021-08-13 18:28:05,950 INFO L482 AbstractCegarLoop]: Abstraction has has 1017 places, 1177 transitions, 238696 flow [2021-08-13 18:28:05,950 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2021-08-13 18:28:05,950 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:05,950 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:06,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:28:06,165 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:06,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:06,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1015981045, now seen corresponding path program 3 times [2021-08-13 18:28:06,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:06,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267283300] [2021-08-13 18:28:06,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:06,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:06,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:06,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:28:06,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:06,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:06,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:06,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:06,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:06,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267283300] [2021-08-13 18:28:06,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267283300] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:06,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586572267] [2021-08-13 18:28:06,217 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 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 [2021-08-13 18:28:06,282 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-13 18:28:06,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:28:06,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:28:06,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:28:06,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:06,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:06,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:06,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:06,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:06,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:06,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:06,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:06,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:06,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:06,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:06,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:06,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:06,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:06,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:06,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:06,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:06,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:06,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:06,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:06,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:06,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:06,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:06,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:06,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:06,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:06,330 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:28:06,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:06,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:06,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:28:06,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:06,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:06,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:06,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:06,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,339 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:28:06,340 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:06,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:06,346 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:06,346 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:06,348 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:28:06,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:06,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:06,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:06,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:06,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:06,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:06,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:06,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:28:06,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:06,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:06,383 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:28:06,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:06,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:06,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:06,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:06,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:06,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:06,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586572267] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:06,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:28:06,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-08-13 18:28:06,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27785810] [2021-08-13 18:28:06,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 18:28:06,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:06,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 18:28:06,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-13 18:28:06,386 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:28:06,386 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1017 places, 1177 transitions, 238696 flow. Second operand has 11 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) [2021-08-13 18:28:06,386 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:06,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:28:06,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:09,645 INFO L129 PetriNetUnfolder]: 995/3249 cut-off events. [2021-08-13 18:28:09,645 INFO L130 PetriNetUnfolder]: For 414692/419622 co-relation queries the response was YES. [2021-08-13 18:28:09,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199874 conditions, 3249 events. 995/3249 cut-off events. For 414692/419622 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 35141 event pairs, 18 based on Foata normal form. 37/2475 useless extension candidates. Maximal degree in co-relation 194235. Up to 1364 conditions per place. [2021-08-13 18:28:09,709 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 622 selfloop transitions, 139 changer transitions 405/1176 dead transitions. [2021-08-13 18:28:09,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 1176 transitions, 240774 flow [2021-08-13 18:28:09,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:28:09,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:28:09,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-08-13 18:28:09,710 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7723214285714286 [2021-08-13 18:28:09,710 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-08-13 18:28:09,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-08-13 18:28:09,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:09,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-08-13 18:28:09,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:09,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:09,711 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:09,711 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 997 predicate places. [2021-08-13 18:28:09,711 INFO L482 AbstractCegarLoop]: Abstraction has has 1024 places, 1176 transitions, 240774 flow [2021-08-13 18:28:09,711 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 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) [2021-08-13 18:28:09,711 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:09,711 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:09,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:28:09,913 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:09,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:09,913 INFO L82 PathProgramCache]: Analyzing trace with hash 869001219, now seen corresponding path program 4 times [2021-08-13 18:28:09,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:09,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293497608] [2021-08-13 18:28:09,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:09,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:09,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:09,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:09,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:28:09,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:09,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:09,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:09,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:09,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:09,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:09,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293497608] [2021-08-13 18:28:09,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293497608] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:09,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695274684] [2021-08-13 18:28:09,960 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 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 [2021-08-13 18:28:09,990 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-13 18:28:09,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:28:09,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:28:09,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:28:09,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:09,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:09,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:09,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:09,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:09,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:09,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:09,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:09,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:09,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:09,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:09,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:09,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:09,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:09,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:10,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:10,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:10,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:10,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:10,026 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size [2021-08-13 18:28:10,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:10,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:10,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 18:28:10,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:10,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:10,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:28:10,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:10,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,032 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:28:10,033 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:10,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:10,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:10,038 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:10,039 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:10,040 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:28:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:10,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:10,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:10,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:10,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:10,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:10,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:10,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:10,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:10,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:10,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:10,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:10,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:10,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:10,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:28:10,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:10,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:10,091 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:28:10,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:10,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:10,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:10,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:10,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:10,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695274684] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:10,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:28:10,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-08-13 18:28:10,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234519469] [2021-08-13 18:28:10,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 18:28:10,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:10,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 18:28:10,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-08-13 18:28:10,093 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:28:10,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 1176 transitions, 240774 flow. Second operand has 11 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) [2021-08-13 18:28:10,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:10,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:28:10,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:13,516 INFO L129 PetriNetUnfolder]: 995/3244 cut-off events. [2021-08-13 18:28:13,517 INFO L130 PetriNetUnfolder]: For 422424/427806 co-relation queries the response was YES. [2021-08-13 18:28:13,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201645 conditions, 3244 events. 995/3244 cut-off events. For 422424/427806 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 35064 event pairs, 20 based on Foata normal form. 31/2462 useless extension candidates. Maximal degree in co-relation 196064. Up to 1363 conditions per place. [2021-08-13 18:28:13,578 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 615 selfloop transitions, 142 changer transitions 408/1175 dead transitions. [2021-08-13 18:28:13,579 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1031 places, 1175 transitions, 242848 flow [2021-08-13 18:28:13,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:28:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:28:13,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-08-13 18:28:13,579 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7633928571428571 [2021-08-13 18:28:13,579 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-08-13 18:28:13,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-08-13 18:28:13,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:13,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-08-13 18:28:13,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:13,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:13,580 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:13,580 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1004 predicate places. [2021-08-13 18:28:13,580 INFO L482 AbstractCegarLoop]: Abstraction has has 1031 places, 1175 transitions, 242848 flow [2021-08-13 18:28:13,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 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) [2021-08-13 18:28:13,580 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:13,580 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:13,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2021-08-13 18:28:13,781 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:13,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:13,782 INFO L82 PathProgramCache]: Analyzing trace with hash -521331553, now seen corresponding path program 5 times [2021-08-13 18:28:13,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:13,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278000731] [2021-08-13 18:28:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:13,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:13,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:13,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:28:13,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:13,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:13,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:13,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:13,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:13,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278000731] [2021-08-13 18:28:13,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278000731] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:13,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947117010] [2021-08-13 18:28:13,830 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 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 [2021-08-13 18:28:13,858 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 18:28:13,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:28:13,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:28:13,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:28:13,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:13,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:13,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:13,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:13,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:13,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:13,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:13,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:13,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:13,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:13,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:13,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:13,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:13,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:13,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:13,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:13,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:13,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:13,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:13,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:13,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:13,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:13,901 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:28:13,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:13,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:13,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:28:13,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:13,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:13,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:13,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:13,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,906 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:28:13,907 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:13,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:13,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:13,909 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:13,909 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:13,910 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:28:13,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:13,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:13,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:13,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:13,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:13,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:13,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:13,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:28:13,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:13,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:13,939 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:28:13,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:13,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:13,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:13,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:13,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:13,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:13,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947117010] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:13,940 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:28:13,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-08-13 18:28:13,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988691119] [2021-08-13 18:28:13,941 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 18:28:13,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:13,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 18:28:13,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-13 18:28:13,941 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:28:13,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1031 places, 1175 transitions, 242848 flow. Second operand has 11 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) [2021-08-13 18:28:13,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:13,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:28:13,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:17,419 INFO L129 PetriNetUnfolder]: 995/3248 cut-off events. [2021-08-13 18:28:17,420 INFO L130 PetriNetUnfolder]: For 462518/472610 co-relation queries the response was YES. [2021-08-13 18:28:17,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203440 conditions, 3248 events. 995/3248 cut-off events. For 462518/472610 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 35197 event pairs, 18 based on Foata normal form. 41/2476 useless extension candidates. Maximal degree in co-relation 197919. Up to 1362 conditions per place. [2021-08-13 18:28:17,501 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 613 selfloop transitions, 140 changer transitions 411/1174 dead transitions. [2021-08-13 18:28:17,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1038 places, 1174 transitions, 244918 flow [2021-08-13 18:28:17,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:28:17,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:28:17,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-08-13 18:28:17,502 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7723214285714286 [2021-08-13 18:28:17,502 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-08-13 18:28:17,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-08-13 18:28:17,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:17,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-08-13 18:28:17,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:17,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:17,503 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:17,503 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1011 predicate places. [2021-08-13 18:28:17,503 INFO L482 AbstractCegarLoop]: Abstraction has has 1038 places, 1174 transitions, 244918 flow [2021-08-13 18:28:17,503 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 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) [2021-08-13 18:28:17,503 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:17,503 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:17,716 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:28:17,717 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:17,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:17,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1458757757, now seen corresponding path program 6 times [2021-08-13 18:28:17,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:17,717 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397680065] [2021-08-13 18:28:17,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:17,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:17,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:17,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:17,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:17,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:17,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:17,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:17,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:17,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397680065] [2021-08-13 18:28:17,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397680065] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:17,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912007520] [2021-08-13 18:28:17,766 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 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 [2021-08-13 18:28:17,795 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-08-13 18:28:17,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:28:17,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:28:17,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:28:17,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:17,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:17,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:17,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:17,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:17,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:17,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:17,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:17,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:17,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:17,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:17,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:17,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:17,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:17,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:17,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:17,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:17,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:17,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:17,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:17,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:17,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:17,827 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:28:17,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:17,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:17,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:28:17,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:17,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:17,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:17,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:17,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,832 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:28:17,832 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:17,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:17,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:17,834 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:17,835 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:17,835 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:28:17,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:17,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:17,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:17,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:17,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:17,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:17,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:17,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:28:17,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:17,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:17,863 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:28:17,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:17,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:17,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:17,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:17,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:17,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:17,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912007520] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:17,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:28:17,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-08-13 18:28:17,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146721142] [2021-08-13 18:28:17,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-08-13 18:28:17,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:17,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-13 18:28:17,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-08-13 18:28:17,866 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:28:17,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1038 places, 1174 transitions, 244918 flow. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2021-08-13 18:28:17,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:17,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:28:17,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:21,739 INFO L129 PetriNetUnfolder]: 995/3248 cut-off events. [2021-08-13 18:28:21,740 INFO L130 PetriNetUnfolder]: For 352155/352545 co-relation queries the response was YES. [2021-08-13 18:28:21,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205231 conditions, 3248 events. 995/3248 cut-off events. For 352155/352545 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 35132 event pairs, 17 based on Foata normal form. 7/2444 useless extension candidates. Maximal degree in co-relation 199772. Up to 1361 conditions per place. [2021-08-13 18:28:21,809 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 610 selfloop transitions, 139 changer transitions 414/1173 dead transitions. [2021-08-13 18:28:21,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1045 places, 1173 transitions, 246984 flow [2021-08-13 18:28:21,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:28:21,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:28:21,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2021-08-13 18:28:21,810 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7678571428571429 [2021-08-13 18:28:21,810 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 172 transitions. [2021-08-13 18:28:21,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 172 transitions. [2021-08-13 18:28:21,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:21,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 172 transitions. [2021-08-13 18:28:21,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:21,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:21,810 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:21,810 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1018 predicate places. [2021-08-13 18:28:21,810 INFO L482 AbstractCegarLoop]: Abstraction has has 1045 places, 1173 transitions, 246984 flow [2021-08-13 18:28:21,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2021-08-13 18:28:21,811 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:21,811 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:22,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:28:22,024 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:22,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:22,025 INFO L82 PathProgramCache]: Analyzing trace with hash -2128241433, now seen corresponding path program 3 times [2021-08-13 18:28:22,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:22,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575967543] [2021-08-13 18:28:22,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:22,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:22,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:22,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:22,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:22,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:22,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:22,076 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-08-13 18:28:22,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:28:22,094 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-08-13 18:28:22,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:22,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:22,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:28:22,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:22,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:22,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:22,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:22,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575967543] [2021-08-13 18:28:22,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575967543] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:28:22,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:28:22,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 18:28:22,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500120060] [2021-08-13 18:28:22,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 18:28:22,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:22,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 18:28:22,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-13 18:28:22,123 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 28 [2021-08-13 18:28:22,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1045 places, 1173 transitions, 246984 flow. Second operand has 7 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) [2021-08-13 18:28:22,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:22,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 28 [2021-08-13 18:28:22,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:26,119 INFO L129 PetriNetUnfolder]: 1025/3322 cut-off events. [2021-08-13 18:28:26,119 INFO L130 PetriNetUnfolder]: For 351940/352330 co-relation queries the response was YES. [2021-08-13 18:28:26,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213245 conditions, 3322 events. 1025/3322 cut-off events. For 351940/352330 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 36028 event pairs, 14 based on Foata normal form. 14/2485 useless extension candidates. Maximal degree in co-relation 208600. Up to 1419 conditions per place. [2021-08-13 18:28:26,184 INFO L132 encePairwiseOnDemand]: 21/28 looper letters, 543 selfloop transitions, 136 changer transitions 511/1223 dead transitions. [2021-08-13 18:28:26,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1051 places, 1223 transitions, 259800 flow [2021-08-13 18:28:26,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 18:28:26,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 18:28:26,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 159 transitions. [2021-08-13 18:28:26,185 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8112244897959183 [2021-08-13 18:28:26,185 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 159 transitions. [2021-08-13 18:28:26,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 159 transitions. [2021-08-13 18:28:26,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:26,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 159 transitions. [2021-08-13 18:28:26,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 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) [2021-08-13 18:28:26,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:26,186 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:26,186 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1024 predicate places. [2021-08-13 18:28:26,186 INFO L482 AbstractCegarLoop]: Abstraction has has 1051 places, 1223 transitions, 259800 flow [2021-08-13 18:28:26,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 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) [2021-08-13 18:28:26,186 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:26,186 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:26,186 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-08-13 18:28:26,186 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:26,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:26,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1846209560, now seen corresponding path program 3 times [2021-08-13 18:28:26,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:26,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313126849] [2021-08-13 18:28:26,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:26,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:26,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:26,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:26,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:26,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:26,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:26,203 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-08-13 18:28:26,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:28:26,219 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-08-13 18:28:26,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:26,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:26,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:28:26,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:26,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:26,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:26,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313126849] [2021-08-13 18:28:26,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313126849] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:28:26,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:28:26,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 18:28:26,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161755345] [2021-08-13 18:28:26,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 18:28:26,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:26,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 18:28:26,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-13 18:28:26,232 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 28 [2021-08-13 18:28:26,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1051 places, 1223 transitions, 259800 flow. Second operand has 7 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) [2021-08-13 18:28:26,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:26,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 28 [2021-08-13 18:28:26,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:30,669 INFO L129 PetriNetUnfolder]: 1059/3419 cut-off events. [2021-08-13 18:28:30,669 INFO L130 PetriNetUnfolder]: For 342016/344582 co-relation queries the response was YES. [2021-08-13 18:28:30,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222380 conditions, 3419 events. 1059/3419 cut-off events. For 342016/344582 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 37231 event pairs, 17 based on Foata normal form. 9/2539 useless extension candidates. Maximal degree in co-relation 218452. Up to 1486 conditions per place. [2021-08-13 18:28:30,727 INFO L132 encePairwiseOnDemand]: 21/28 looper letters, 502 selfloop transitions, 129 changer transitions 618/1282 dead transitions. [2021-08-13 18:28:30,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1057 places, 1282 transitions, 274764 flow [2021-08-13 18:28:30,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 18:28:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 18:28:30,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 159 transitions. [2021-08-13 18:28:30,728 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8112244897959183 [2021-08-13 18:28:30,728 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 159 transitions. [2021-08-13 18:28:30,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 159 transitions. [2021-08-13 18:28:30,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:30,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 159 transitions. [2021-08-13 18:28:30,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 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) [2021-08-13 18:28:30,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:30,728 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:30,728 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1030 predicate places. [2021-08-13 18:28:30,728 INFO L482 AbstractCegarLoop]: Abstraction has has 1057 places, 1282 transitions, 274764 flow [2021-08-13 18:28:30,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 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) [2021-08-13 18:28:30,728 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:30,728 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:30,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-08-13 18:28:30,729 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:30,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:30,729 INFO L82 PathProgramCache]: Analyzing trace with hash -2071628639, now seen corresponding path program 7 times [2021-08-13 18:28:30,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:30,729 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620380259] [2021-08-13 18:28:30,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:30,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:30,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:30,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:30,743 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 18:28:30,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:28:30,751 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-08-13 18:28:30,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:30,760 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-08-13 18:28:30,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:30,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:30,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:30,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:30,786 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:30,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620380259] [2021-08-13 18:28:30,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620380259] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:30,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245132834] [2021-08-13 18:28:30,786 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 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 [2021-08-13 18:28:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:30,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:28:30,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:28:30,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:30,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:30,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:30,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:30,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:30,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:30,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:30,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:30,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:30,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:30,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:30,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:30,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:30,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:30,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:30,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:30,841 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-08-13 18:28:30,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:30,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:30,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-08-13 18:28:30,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:30,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:30,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 18:28:30,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,849 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:30,850 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:30,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:28:30,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:28:30,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:28:30,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:28:30,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:28:30,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:28:30,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:30,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:30,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:30,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:30,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:30,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:30,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:30,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:30,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:28:30,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:30,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,888 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:28:30,891 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:30,892 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:28:30,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:30,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:30,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:30,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:30,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:30,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:30,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:30,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:30,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:30,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:30,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:30,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:28:30,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:30,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:30,931 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:28:30,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:30,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:30,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:30,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:30,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:30,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:30,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245132834] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:30,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:28:30,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-08-13 18:28:30,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210525537] [2021-08-13 18:28:30,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 18:28:30,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:30,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 18:28:30,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-08-13 18:28:30,933 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:28:30,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1057 places, 1282 transitions, 274764 flow. Second operand has 13 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) [2021-08-13 18:28:30,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:30,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:28:30,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:35,863 INFO L129 PetriNetUnfolder]: 1143/3692 cut-off events. [2021-08-13 18:28:35,864 INFO L130 PetriNetUnfolder]: For 380017/381603 co-relation queries the response was YES. [2021-08-13 18:28:35,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 241668 conditions, 3692 events. 1143/3692 cut-off events. For 380017/381603 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 40641 event pairs, 10 based on Foata normal form. 14/2746 useless extension candidates. Maximal degree in co-relation 236447. Up to 1581 conditions per place. [2021-08-13 18:28:35,926 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 633 selfloop transitions, 121 changer transitions 629/1393 dead transitions. [2021-08-13 18:28:35,926 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1064 places, 1393 transitions, 301024 flow [2021-08-13 18:28:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:28:35,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:28:35,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-08-13 18:28:35,927 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7410714285714286 [2021-08-13 18:28:35,927 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-08-13 18:28:35,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-08-13 18:28:35,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:35,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-08-13 18:28:35,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:35,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:35,927 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:35,927 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1037 predicate places. [2021-08-13 18:28:35,927 INFO L482 AbstractCegarLoop]: Abstraction has has 1064 places, 1393 transitions, 301024 flow [2021-08-13 18:28:35,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 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) [2021-08-13 18:28:35,928 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:35,928 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:36,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135 [2021-08-13 18:28:36,129 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:36,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:36,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1967466875, now seen corresponding path program 8 times [2021-08-13 18:28:36,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:36,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390645374] [2021-08-13 18:28:36,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:36,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:36,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:36,142 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 18:28:36,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:28:36,150 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-08-13 18:28:36,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:36,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:36,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:36,176 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:36,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390645374] [2021-08-13 18:28:36,176 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390645374] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:36,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081753562] [2021-08-13 18:28:36,176 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 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 [2021-08-13 18:28:36,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 18:28:36,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:28:36,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:28:36,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:28:36,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:36,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:36,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:36,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:36,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:36,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:36,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:36,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:36,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:36,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:36,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:36,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:36,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:36,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:36,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:36,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:36,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:36,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:36,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:36,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:36,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:36,251 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:28:36,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:36,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:28:36,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 18:28:36,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:36,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,257 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:28:36,258 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:36,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:36,261 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:36,261 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:36,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:36,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:36,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:36,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:28:36,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:36,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:28:36,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:28:36,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,285 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:36,285 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:36,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:36,288 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:36,288 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:36,289 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-08-13 18:28:36,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:36,308 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:28:36,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:36,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:36,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081753562] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:36,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:28:36,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-13 18:28:36,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427086870] [2021-08-13 18:28:36,311 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:28:36,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:36,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:28:36,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:28:36,312 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:28:36,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1064 places, 1393 transitions, 301024 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:36,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:36,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:28:36,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:41,603 INFO L129 PetriNetUnfolder]: 1143/3697 cut-off events. [2021-08-13 18:28:41,604 INFO L130 PetriNetUnfolder]: For 392339/395061 co-relation queries the response was YES. [2021-08-13 18:28:41,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244243 conditions, 3697 events. 1143/3697 cut-off events. For 392339/395061 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 40826 event pairs, 17 based on Foata normal form. 18/2752 useless extension candidates. Maximal degree in co-relation 239200. Up to 1579 conditions per place. [2021-08-13 18:28:41,675 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 628 selfloop transitions, 117 changer transitions 642/1397 dead transitions. [2021-08-13 18:28:41,675 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1071 places, 1397 transitions, 304568 flow [2021-08-13 18:28:41,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:28:41,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:28:41,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 163 transitions. [2021-08-13 18:28:41,682 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7276785714285714 [2021-08-13 18:28:41,682 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 163 transitions. [2021-08-13 18:28:41,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 163 transitions. [2021-08-13 18:28:41,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:41,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 163 transitions. [2021-08-13 18:28:41,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:41,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:41,683 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:41,683 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1044 predicate places. [2021-08-13 18:28:41,683 INFO L482 AbstractCegarLoop]: Abstraction has has 1071 places, 1397 transitions, 304568 flow [2021-08-13 18:28:41,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:41,683 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:41,683 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:41,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:28:41,884 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:41,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:41,884 INFO L82 PathProgramCache]: Analyzing trace with hash -2143955679, now seen corresponding path program 9 times [2021-08-13 18:28:41,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:41,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409452096] [2021-08-13 18:28:41,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:41,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:41,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:41,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:28:41,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:41,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:41,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:41,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:41,930 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:41,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409452096] [2021-08-13 18:28:41,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409452096] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:41,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364436166] [2021-08-13 18:28:41,930 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 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 [2021-08-13 18:28:41,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-13 18:28:41,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:28:41,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:28:41,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:28:41,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:41,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:41,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:41,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:41,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:41,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:41,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:41,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:41,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:41,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:41,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:41,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:28:41,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:41,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:41,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:28:41,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:41,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:41,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:41,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:41,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:41,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:41,989 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size [2021-08-13 18:28:41,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:41,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:41,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 18:28:41,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:41,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:41,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:28:41,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:41,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,995 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:28:41,995 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:41,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:41,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:41,998 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:41,998 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:41,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:41,999 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:28:41,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:42,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:42,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:28:42,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:42,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:42,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:42,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:42,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:42,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:42,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:42,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:42,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:28:42,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:42,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:42,044 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:28:42,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:42,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:42,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:42,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:42,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:42,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364436166] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:42,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:28:42,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-13 18:28:42,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752666640] [2021-08-13 18:28:42,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:28:42,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:42,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:28:42,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:28:42,047 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:28:42,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1071 places, 1397 transitions, 304568 flow. Second operand has 12 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) [2021-08-13 18:28:42,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:42,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:28:42,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:47,866 INFO L129 PetriNetUnfolder]: 1275/4175 cut-off events. [2021-08-13 18:28:47,866 INFO L130 PetriNetUnfolder]: For 463496/465118 co-relation queries the response was YES. [2021-08-13 18:28:47,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276503 conditions, 4175 events. 1275/4175 cut-off events. For 463496/465118 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 47207 event pairs, 14 based on Foata normal form. 13/3100 useless extension candidates. Maximal degree in co-relation 269758. Up to 1725 conditions per place. [2021-08-13 18:28:47,944 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 731 selfloop transitions, 150 changer transitions 692/1583 dead transitions. [2021-08-13 18:28:47,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1078 places, 1583 transitions, 347812 flow [2021-08-13 18:28:47,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:28:47,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:28:47,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-08-13 18:28:47,945 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7544642857142857 [2021-08-13 18:28:47,945 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-08-13 18:28:47,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-08-13 18:28:47,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:47,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-08-13 18:28:47,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:47,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:47,945 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:47,945 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1051 predicate places. [2021-08-13 18:28:47,945 INFO L482 AbstractCegarLoop]: Abstraction has has 1078 places, 1583 transitions, 347812 flow [2021-08-13 18:28:47,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 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) [2021-08-13 18:28:47,946 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:47,946 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:48,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable143 [2021-08-13 18:28:48,161 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:48,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:48,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1699702665, now seen corresponding path program 10 times [2021-08-13 18:28:48,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:48,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095386194] [2021-08-13 18:28:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:48,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:48,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:48,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:28:48,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:48,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:48,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:48,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:48,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095386194] [2021-08-13 18:28:48,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095386194] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:48,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069118516] [2021-08-13 18:28:48,210 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 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 [2021-08-13 18:28:48,239 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-13 18:28:48,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:28:48,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:28:48,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:28:48,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:48,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:48,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:48,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:48,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:48,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:48,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:48,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:48,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:48,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:48,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:48,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:48,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:48,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:48,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:48,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:48,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:48,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:48,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:48,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:48,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:48,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:48,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:48,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:48,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:48,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:48,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:48,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:48,298 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:28:48,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:48,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:48,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:28:48,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:48,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:48,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:48,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:48,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,302 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:28:48,302 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:48,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:48,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:48,305 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:48,305 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:48,305 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:28:48,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:48,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:48,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:48,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:48,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:48,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:48,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:48,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:28:48,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:48,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:48,339 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:28:48,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:48,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:48,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:48,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069118516] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:48,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:28:48,341 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-13 18:28:48,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824816016] [2021-08-13 18:28:48,341 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:28:48,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:48,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:28:48,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:28:48,341 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:28:48,341 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1078 places, 1583 transitions, 347812 flow. Second operand has 12 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) [2021-08-13 18:28:48,341 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:48,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:28:48,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:28:55,078 INFO L129 PetriNetUnfolder]: 1315/4305 cut-off events. [2021-08-13 18:28:55,078 INFO L130 PetriNetUnfolder]: For 509997/512791 co-relation queries the response was YES. [2021-08-13 18:28:55,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287205 conditions, 4305 events. 1315/4305 cut-off events. For 509997/512791 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 48849 event pairs, 15 based on Foata normal form. 18/3201 useless extension candidates. Maximal degree in co-relation 280160. Up to 1767 conditions per place. [2021-08-13 18:28:55,280 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 761 selfloop transitions, 157 changer transitions 709/1637 dead transitions. [2021-08-13 18:28:55,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1085 places, 1637 transitions, 362760 flow [2021-08-13 18:28:55,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:28:55,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:28:55,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-08-13 18:28:55,281 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7589285714285714 [2021-08-13 18:28:55,281 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-08-13 18:28:55,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-08-13 18:28:55,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:28:55,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-08-13 18:28:55,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 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) [2021-08-13 18:28:55,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:55,282 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:55,282 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1058 predicate places. [2021-08-13 18:28:55,282 INFO L482 AbstractCegarLoop]: Abstraction has has 1085 places, 1637 transitions, 362760 flow [2021-08-13 18:28:55,282 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 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) [2021-08-13 18:28:55,282 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:28:55,282 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:28:55,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable146 [2021-08-13 18:28:55,483 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:28:55,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:28:55,483 INFO L82 PathProgramCache]: Analyzing trace with hash -925691011, now seen corresponding path program 11 times [2021-08-13 18:28:55,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:28:55,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571106458] [2021-08-13 18:28:55,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:28:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:28:55,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:55,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:55,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:28:55,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:28:55,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:55,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:55,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:55,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:28:55,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571106458] [2021-08-13 18:28:55,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571106458] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:55,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895884448] [2021-08-13 18:28:55,530 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 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 [2021-08-13 18:28:55,555 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 18:28:55,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:28:55,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:28:55,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:28:55,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:55,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:55,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:55,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:55,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:28:55,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:55,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:55,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:55,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:28:55,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:55,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:55,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:55,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:55,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:55,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:55,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:55,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:55,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:28:55,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:55,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:55,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:55,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:55,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:55,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:55,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:55,599 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:28:55,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:55,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:55,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:28:55,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:55,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:55,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:55,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:55,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,604 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:28:55,604 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:55,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:55,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:28:55,606 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:28:55,606 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:55,607 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:28:55,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:28:55,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:55,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:28:55,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:55,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:28:55,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:28:55,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:28:55,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:28:55,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:28:55,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:28:55,643 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:28:55,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:55,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:55,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:55,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:28:55,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:28:55,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:28:55,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895884448] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:28:55,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:28:55,645 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-08-13 18:28:55,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721193509] [2021-08-13 18:28:55,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 18:28:55,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:28:55,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 18:28:55,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-08-13 18:28:55,645 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:28:55,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1085 places, 1637 transitions, 362760 flow. Second operand has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 11 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:28:55,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:28:55,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:28:55,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:29:02,666 INFO L129 PetriNetUnfolder]: 1327/4371 cut-off events. [2021-08-13 18:29:02,667 INFO L130 PetriNetUnfolder]: For 531786/534616 co-relation queries the response was YES. [2021-08-13 18:29:02,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 293537 conditions, 4371 events. 1327/4371 cut-off events. For 531786/534616 co-relation queries the response was YES. Maximal size of possible extension queue 601. Compared 49955 event pairs, 16 based on Foata normal form. 18/3253 useless extension candidates. Maximal degree in co-relation 286190. Up to 1781 conditions per place. [2021-08-13 18:29:02,747 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 773 selfloop transitions, 160 changer transitions 722/1665 dead transitions. [2021-08-13 18:29:02,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1092 places, 1665 transitions, 372144 flow [2021-08-13 18:29:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:29:02,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:29:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-08-13 18:29:02,748 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7589285714285714 [2021-08-13 18:29:02,748 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-08-13 18:29:02,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-08-13 18:29:02,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:29:02,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-08-13 18:29:02,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 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) [2021-08-13 18:29:02,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:02,749 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:02,749 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1065 predicate places. [2021-08-13 18:29:02,749 INFO L482 AbstractCegarLoop]: Abstraction has has 1092 places, 1665 transitions, 372144 flow [2021-08-13 18:29:02,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 11 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:02,749 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:29:02,749 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:29:02,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable149 [2021-08-13 18:29:02,950 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:29:02,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:29:02,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1185161297, now seen corresponding path program 12 times [2021-08-13 18:29:02,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:29:02,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584205550] [2021-08-13 18:29:02,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:29:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:29:02,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:02,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:02,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:02,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:02,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:02,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:02,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:02,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:02,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:02,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:29:02,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:02,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:02,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:02,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:02,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:02,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:02,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:29:02,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584205550] [2021-08-13 18:29:02,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584205550] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:02,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207224866] [2021-08-13 18:29:02,991 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 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 [2021-08-13 18:29:03,018 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-08-13 18:29:03,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:29:03,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:29:03,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:29:03,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:03,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:03,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:03,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:03,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:03,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:03,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:03,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:03,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:03,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:03,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:03,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:03,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:03,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:03,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:03,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:03,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:03,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:03,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,073 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:29:03,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:03,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:03,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:29:03,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:03,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:29:03,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:29:03,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:03,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,079 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:29:03,080 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:03,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:29:03,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:29:03,082 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:29:03,083 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:03,083 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:29:03,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:03,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:03,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:03,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:03,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:29:03,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:03,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:29:03,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:03,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:03,118 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:29:03,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:03,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:03,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207224866] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:03,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:29:03,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-08-13 18:29:03,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945450232] [2021-08-13 18:29:03,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-08-13 18:29:03,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:29:03,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-13 18:29:03,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-13 18:29:03,121 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:29:03,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1092 places, 1665 transitions, 372144 flow. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2021-08-13 18:29:03,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:29:03,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:29:03,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:29:10,410 INFO L129 PetriNetUnfolder]: 1351/4447 cut-off events. [2021-08-13 18:29:10,410 INFO L130 PetriNetUnfolder]: For 563407/569110 co-relation queries the response was YES. [2021-08-13 18:29:10,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300947 conditions, 4447 events. 1351/4447 cut-off events. For 563407/569110 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 50911 event pairs, 18 based on Foata normal form. 21/3308 useless extension candidates. Maximal degree in co-relation 293881. Up to 1802 conditions per place. [2021-08-13 18:29:10,501 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 769 selfloop transitions, 171 changer transitions 746/1696 dead transitions. [2021-08-13 18:29:10,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1099 places, 1696 transitions, 382288 flow [2021-08-13 18:29:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:29:10,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:29:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-08-13 18:29:10,502 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7589285714285714 [2021-08-13 18:29:10,502 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-08-13 18:29:10,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-08-13 18:29:10,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:29:10,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-08-13 18:29:10,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 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) [2021-08-13 18:29:10,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:10,503 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:10,503 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1072 predicate places. [2021-08-13 18:29:10,503 INFO L482 AbstractCegarLoop]: Abstraction has has 1099 places, 1696 transitions, 382288 flow [2021-08-13 18:29:10,503 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2021-08-13 18:29:10,503 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:29:10,503 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:29:10,712 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:29:10,713 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:29:10,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:29:10,713 INFO L82 PathProgramCache]: Analyzing trace with hash 479243105, now seen corresponding path program 13 times [2021-08-13 18:29:10,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:29:10,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378871284] [2021-08-13 18:29:10,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:29:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:29:10,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:10,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:10,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:10,726 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 18:29:10,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:29:10,734 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-08-13 18:29:10,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:29:10,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:10,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:10,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:10,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:10,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:29:10,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378871284] [2021-08-13 18:29:10,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378871284] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:10,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774703625] [2021-08-13 18:29:10,766 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 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 [2021-08-13 18:29:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:29:10,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:29:10,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:29:10,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:10,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:10,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:10,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:10,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:10,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:10,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:10,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:10,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:10,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:10,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:10,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:10,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:10,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:10,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:10,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:10,812 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-08-13 18:29:10,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:10,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:10,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-08-13 18:29:10,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:10,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:10,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 18:29:10,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,815 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:29:10,815 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:10,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:29:10,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:29:10,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:10,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:10,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:29:10,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:10,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:10,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:10,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:29:10,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-08-13 18:29:10,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,832 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:29:10,833 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:10,833 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:29:10,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:10,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:10,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:10,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:10,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:10,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:10,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:10,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:10,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:10,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:10,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:10,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:10,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:10,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:10,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:10,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:10,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:10,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:29:10,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:10,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:29:10,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:10,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:10,882 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:29:10,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:10,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:10,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:10,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:10,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:10,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:10,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774703625] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:10,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:29:10,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-08-13 18:29:10,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213606645] [2021-08-13 18:29:10,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 18:29:10,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:29:10,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 18:29:10,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-08-13 18:29:10,885 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:29:10,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1099 places, 1696 transitions, 382288 flow. Second operand has 13 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) [2021-08-13 18:29:10,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:29:10,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:29:10,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:29:19,022 INFO L129 PetriNetUnfolder]: 1407/4768 cut-off events. [2021-08-13 18:29:19,022 INFO L130 PetriNetUnfolder]: For 578183/581085 co-relation queries the response was YES. [2021-08-13 18:29:19,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 321444 conditions, 4768 events. 1407/4768 cut-off events. For 578183/581085 co-relation queries the response was YES. Maximal size of possible extension queue 628. Compared 55726 event pairs, 16 based on Foata normal form. 17/3556 useless extension candidates. Maximal degree in co-relation 313317. Up to 1866 conditions per place. [2021-08-13 18:29:19,129 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 815 selfloop transitions, 190 changer transitions 801/1816 dead transitions. [2021-08-13 18:29:19,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1106 places, 1816 transitions, 412598 flow [2021-08-13 18:29:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:29:19,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:29:19,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-08-13 18:29:19,130 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7410714285714286 [2021-08-13 18:29:19,130 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-08-13 18:29:19,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-08-13 18:29:19,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:29:19,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-08-13 18:29:19,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:19,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:19,131 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:19,131 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1079 predicate places. [2021-08-13 18:29:19,131 INFO L482 AbstractCegarLoop]: Abstraction has has 1106 places, 1816 transitions, 412598 flow [2021-08-13 18:29:19,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 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) [2021-08-13 18:29:19,131 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:29:19,132 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:29:19,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable155 [2021-08-13 18:29:19,335 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:29:19,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:29:19,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1245266089, now seen corresponding path program 14 times [2021-08-13 18:29:19,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:29:19,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932881944] [2021-08-13 18:29:19,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:29:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:29:19,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:19,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:19,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:19,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:29:19,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:29:19,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:19,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:19,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:19,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:29:19,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932881944] [2021-08-13 18:29:19,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932881944] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:19,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596826816] [2021-08-13 18:29:19,382 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 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 [2021-08-13 18:29:19,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 18:29:19,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:29:19,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:29:19,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:29:19,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:19,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:19,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:19,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:19,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:19,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:19,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:19,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:19,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:19,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:19,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:19,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:19,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:19,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:19,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:19,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:19,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:19,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:19,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:29:19,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:19,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:19,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:29:19,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:19,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:19,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:19,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:19,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:19,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:19,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:19,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:19,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:19,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:29:19,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:19,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:19,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:19,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:19,463 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:29:19,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:19,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:19,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:29:19,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:19,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:29:19,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:29:19,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:19,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,469 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:29:19,469 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:19,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:29:19,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:29:19,472 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:29:19,472 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:19,473 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:29:19,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:19,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:19,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:19,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:19,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:19,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:29:19,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:19,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:29:19,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:19,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:19,510 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:29:19,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:19,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:19,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:19,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:19,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:19,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:19,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596826816] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:19,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:29:19,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-13 18:29:19,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142656434] [2021-08-13 18:29:19,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:29:19,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:29:19,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:29:19,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:29:19,512 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:29:19,512 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1106 places, 1816 transitions, 412598 flow. Second operand has 12 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) [2021-08-13 18:29:19,512 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:29:19,512 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:29:19,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:29:28,328 INFO L129 PetriNetUnfolder]: 1407/4767 cut-off events. [2021-08-13 18:29:28,328 INFO L130 PetriNetUnfolder]: For 581301/584239 co-relation queries the response was YES. [2021-08-13 18:29:28,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 323845 conditions, 4767 events. 1407/4767 cut-off events. For 581301/584239 co-relation queries the response was YES. Maximal size of possible extension queue 632. Compared 55795 event pairs, 17 based on Foata normal form. 19/3552 useless extension candidates. Maximal degree in co-relation 316012. Up to 1863 conditions per place. [2021-08-13 18:29:28,536 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 818 selfloop transitions, 176 changer transitions 809/1813 dead transitions. [2021-08-13 18:29:28,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1113 places, 1813 transitions, 415456 flow [2021-08-13 18:29:28,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:29:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:29:28,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-08-13 18:29:28,537 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7544642857142857 [2021-08-13 18:29:28,537 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-08-13 18:29:28,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-08-13 18:29:28,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:29:28,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-08-13 18:29:28,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:28,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:28,537 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:28,537 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1086 predicate places. [2021-08-13 18:29:28,537 INFO L482 AbstractCegarLoop]: Abstraction has has 1113 places, 1813 transitions, 415456 flow [2021-08-13 18:29:28,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 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) [2021-08-13 18:29:28,537 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:29:28,537 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:29:28,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable158 [2021-08-13 18:29:28,739 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:29:28,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:29:28,739 INFO L82 PathProgramCache]: Analyzing trace with hash 976412719, now seen corresponding path program 15 times [2021-08-13 18:29:28,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:29:28,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650181385] [2021-08-13 18:29:28,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:29:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:29:28,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:28,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:28,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:28,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:29:28,766 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-08-13 18:29:28,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:29:28,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:29:28,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:28,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:28,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:29:28,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650181385] [2021-08-13 18:29:28,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650181385] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:28,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560389533] [2021-08-13 18:29:28,791 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 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 [2021-08-13 18:29:28,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-13 18:29:28,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:29:28,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:29:28,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:29:28,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:28,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:28,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:28,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:28,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:28,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:28,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:28,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:28,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:28,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:28,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:28,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:28,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:28,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:28,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:28,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:28,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:28,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:28,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:28,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:28,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:28,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:28,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:28,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:28,847 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-08-13 18:29:28,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:28,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:29:28,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:28,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:29:28,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,850 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:29:28,851 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:28,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:28,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:28,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:29:28,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:29:28,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,869 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:29:28,870 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:28,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:29:28,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:29:28,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:28,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:29:28,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:28,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:29:28,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:29:28,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,893 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:29:28,894 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:28,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:28,896 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:29:28,896 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:28,897 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-08-13 18:29:28,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:28,916 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:29:28,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:28,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:28,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:28,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:28,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:28,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:28,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560389533] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:28,918 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:29:28,918 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-13 18:29:28,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722760413] [2021-08-13 18:29:28,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:29:28,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:29:28,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:29:28,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:29:28,918 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:29:28,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1113 places, 1813 transitions, 415456 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:28,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:29:28,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:29:28,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:29:38,534 INFO L129 PetriNetUnfolder]: 1407/4800 cut-off events. [2021-08-13 18:29:38,534 INFO L130 PetriNetUnfolder]: For 663660/674675 co-relation queries the response was YES. [2021-08-13 18:29:38,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 328315 conditions, 4800 events. 1407/4800 cut-off events. For 663660/674675 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 56312 event pairs, 20 based on Foata normal form. 26/3585 useless extension candidates. Maximal degree in co-relation 320526. Up to 1862 conditions per place. [2021-08-13 18:29:38,622 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 828 selfloop transitions, 160 changer transitions 830/1828 dead transitions. [2021-08-13 18:29:38,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1120 places, 1828 transitions, 422394 flow [2021-08-13 18:29:38,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:29:38,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:29:38,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 165 transitions. [2021-08-13 18:29:38,623 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7366071428571429 [2021-08-13 18:29:38,623 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 165 transitions. [2021-08-13 18:29:38,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 165 transitions. [2021-08-13 18:29:38,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:29:38,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 165 transitions. [2021-08-13 18:29:38,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:38,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:38,623 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:38,623 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1093 predicate places. [2021-08-13 18:29:38,623 INFO L482 AbstractCegarLoop]: Abstraction has has 1120 places, 1828 transitions, 422394 flow [2021-08-13 18:29:38,623 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:38,623 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:29:38,624 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:29:38,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable161 [2021-08-13 18:29:38,824 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:29:38,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:29:38,824 INFO L82 PathProgramCache]: Analyzing trace with hash -709390237, now seen corresponding path program 16 times [2021-08-13 18:29:38,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:29:38,825 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882992048] [2021-08-13 18:29:38,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:29:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:29:38,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:38,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:38,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:38,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:29:38,853 INFO L142 QuantifierPusher]: treesize reduction 5, result has 76.2 percent of original size [2021-08-13 18:29:38,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:29:38,863 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-08-13 18:29:38,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:38,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:38,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:38,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:38,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:29:38,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882992048] [2021-08-13 18:29:38,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882992048] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:38,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798036875] [2021-08-13 18:29:38,889 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 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 [2021-08-13 18:29:38,916 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-13 18:29:38,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:29:38,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:29:38,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:29:38,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:38,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:38,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:38,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:38,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:38,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:38,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:38,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:38,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:38,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:38,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:38,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:38,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:38,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:38,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:38,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:38,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:38,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:38,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:38,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:38,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:38,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:38,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:38,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:38,943 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-08-13 18:29:38,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:38,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:38,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:29:38,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:38,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:38,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:29:38,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,947 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:29:38,947 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:38,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:38,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:38,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:38,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:38,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:29:38,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:38,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:29:38,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:29:38,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,968 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:29:38,968 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:38,969 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:29:38,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:38,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:38,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:38,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:38,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:38,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:38,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:38,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:38,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:38,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:29:38,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:38,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:29:38,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:38,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:38,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:38,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:39,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:39,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:39,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:39,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:39,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:39,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:39,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:39,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:39,003 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:29:39,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:39,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:39,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:39,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:39,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:39,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:39,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798036875] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:39,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:29:39,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-08-13 18:29:39,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633499892] [2021-08-13 18:29:39,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:29:39,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:29:39,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:29:39,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:29:39,006 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:29:39,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1120 places, 1828 transitions, 422394 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:39,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:29:39,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:29:39,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:29:48,441 INFO L129 PetriNetUnfolder]: 1423/4891 cut-off events. [2021-08-13 18:29:48,441 INFO L130 PetriNetUnfolder]: For 608368/613754 co-relation queries the response was YES. [2021-08-13 18:29:48,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 335562 conditions, 4891 events. 1423/4891 cut-off events. For 608368/613754 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 57618 event pairs, 11 based on Foata normal form. 16/3650 useless extension candidates. Maximal degree in co-relation 327940. Up to 1876 conditions per place. [2021-08-13 18:29:48,564 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 822 selfloop transitions, 171 changer transitions 855/1858 dead transitions. [2021-08-13 18:29:48,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1127 places, 1858 transitions, 432864 flow [2021-08-13 18:29:48,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:29:48,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:29:48,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 167 transitions. [2021-08-13 18:29:48,565 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7455357142857143 [2021-08-13 18:29:48,565 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 167 transitions. [2021-08-13 18:29:48,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 167 transitions. [2021-08-13 18:29:48,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:29:48,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 167 transitions. [2021-08-13 18:29:48,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:48,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:48,565 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:48,565 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1100 predicate places. [2021-08-13 18:29:48,565 INFO L482 AbstractCegarLoop]: Abstraction has has 1127 places, 1858 transitions, 432864 flow [2021-08-13 18:29:48,565 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:48,565 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:29:48,566 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:29:48,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2021-08-13 18:29:48,781 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:29:48,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:29:48,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1802141555, now seen corresponding path program 17 times [2021-08-13 18:29:48,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:29:48,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970301844] [2021-08-13 18:29:48,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:29:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:29:48,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:48,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:48,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:48,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:29:48,803 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-08-13 18:29:48,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:29:48,812 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-08-13 18:29:48,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:48,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:48,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:48,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:48,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:29:48,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970301844] [2021-08-13 18:29:48,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970301844] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:48,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408010683] [2021-08-13 18:29:48,842 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 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 [2021-08-13 18:29:48,890 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 18:29:48,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:29:48,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:29:48,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:29:48,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:48,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:48,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:48,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:48,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:48,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:48,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:48,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:48,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:48,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:48,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:48,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:48,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:48,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:48,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:48,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:48,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:48,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:48,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:48,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:48,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:48,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:48,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:48,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:48,924 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-08-13 18:29:48,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:48,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:48,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:29:48,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:48,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:48,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:29:48,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,927 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:29:48,928 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:48,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:48,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:48,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:48,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:48,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:29:48,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:48,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:29:48,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:29:48,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,949 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:29:48,950 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:48,951 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:29:48,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:29:48,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:48,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:48,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:48,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:48,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:48,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:29:48,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:48,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:48,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:29:48,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:48,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:29:48,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:48,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:48,990 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:29:48,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:48,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:48,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:48,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:48,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:48,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:48,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408010683] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:48,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:29:48,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-08-13 18:29:48,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673146615] [2021-08-13 18:29:48,992 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 18:29:48,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:29:48,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 18:29:48,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-13 18:29:48,993 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:29:48,993 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1127 places, 1858 transitions, 432864 flow. Second operand has 13 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) [2021-08-13 18:29:48,993 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:29:48,993 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:29:48,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:29:59,037 INFO L129 PetriNetUnfolder]: 1423/4905 cut-off events. [2021-08-13 18:29:59,037 INFO L130 PetriNetUnfolder]: For 568836/571882 co-relation queries the response was YES. [2021-08-13 18:29:59,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339182 conditions, 4905 events. 1423/4905 cut-off events. For 568836/571882 co-relation queries the response was YES. Maximal size of possible extension queue 638. Compared 58024 event pairs, 18 based on Foata normal form. 17/3661 useless extension candidates. Maximal degree in co-relation 331617. Up to 1875 conditions per place. [2021-08-13 18:29:59,128 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 819 selfloop transitions, 171 changer transitions 865/1865 dead transitions. [2021-08-13 18:29:59,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1134 places, 1865 transitions, 438112 flow [2021-08-13 18:29:59,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:29:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:29:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-08-13 18:29:59,137 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7410714285714286 [2021-08-13 18:29:59,137 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-08-13 18:29:59,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-08-13 18:29:59,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:29:59,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-08-13 18:29:59,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:59,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:59,138 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:29:59,138 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1107 predicate places. [2021-08-13 18:29:59,138 INFO L482 AbstractCegarLoop]: Abstraction has has 1134 places, 1865 transitions, 438112 flow [2021-08-13 18:29:59,138 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 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) [2021-08-13 18:29:59,138 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:29:59,138 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:29:59,352 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable169 [2021-08-13 18:29:59,353 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:29:59,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:29:59,353 INFO L82 PathProgramCache]: Analyzing trace with hash 2016648517, now seen corresponding path program 18 times [2021-08-13 18:29:59,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:29:59,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691884435] [2021-08-13 18:29:59,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:29:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:29:59,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:59,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:59,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:59,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:29:59,372 INFO L142 QuantifierPusher]: treesize reduction 5, result has 76.2 percent of original size [2021-08-13 18:29:59,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:29:59,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:29:59,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:59,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:29:59,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691884435] [2021-08-13 18:29:59,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691884435] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:59,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446260230] [2021-08-13 18:29:59,399 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 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 [2021-08-13 18:29:59,430 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-08-13 18:29:59,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:29:59,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:29:59,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:29:59,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:59,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:59,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:59,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:59,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:59,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:59,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:59,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:59,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:59,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:59,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:59,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:29:59,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:59,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:59,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:59,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:59,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:59,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:59,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:59,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:29:59,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:59,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:59,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:59,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:59,451 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-08-13 18:29:59,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:59,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:29:59,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:59,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:29:59,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,455 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:29:59,456 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:59,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:59,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:59,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:29:59,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:29:59,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:29:59,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,481 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:29:59,481 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:59,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:29:59,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:29:59,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:59,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:29:59,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:29:59,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:29:59,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:29:59,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,505 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:29:59,505 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:59,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:29:59,507 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:29:59,507 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:29:59,508 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-08-13 18:29:59,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:29:59,526 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:29:59,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:59,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:59,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:59,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:29:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:29:59,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:29:59,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446260230] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:29:59,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:29:59,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-08-13 18:29:59,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192659908] [2021-08-13 18:29:59,528 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 18:29:59,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:29:59,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 18:29:59,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-13 18:29:59,528 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:29:59,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1134 places, 1865 transitions, 438112 flow. Second operand has 11 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) [2021-08-13 18:29:59,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:29:59,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:29:59,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:30:09,930 INFO L129 PetriNetUnfolder]: 1423/4908 cut-off events. [2021-08-13 18:30:09,930 INFO L130 PetriNetUnfolder]: For 606252/611873 co-relation queries the response was YES. [2021-08-13 18:30:09,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341875 conditions, 4908 events. 1423/4908 cut-off events. For 606252/611873 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 58053 event pairs, 17 based on Foata normal form. 23/3666 useless extension candidates. Maximal degree in co-relation 334377. Up to 1874 conditions per place. [2021-08-13 18:30:10,026 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 824 selfloop transitions, 161 changer transitions 869/1864 dead transitions. [2021-08-13 18:30:10,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1141 places, 1864 transitions, 441532 flow [2021-08-13 18:30:10,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:30:10,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:30:10,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 163 transitions. [2021-08-13 18:30:10,027 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7276785714285714 [2021-08-13 18:30:10,027 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 163 transitions. [2021-08-13 18:30:10,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 163 transitions. [2021-08-13 18:30:10,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:30:10,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 163 transitions. [2021-08-13 18:30:10,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:10,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:10,028 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:10,028 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1114 predicate places. [2021-08-13 18:30:10,028 INFO L482 AbstractCegarLoop]: Abstraction has has 1141 places, 1864 transitions, 441532 flow [2021-08-13 18:30:10,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 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) [2021-08-13 18:30:10,028 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:30:10,028 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:30:10,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable172 [2021-08-13 18:30:10,241 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:30:10,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:30:10,241 INFO L82 PathProgramCache]: Analyzing trace with hash -40449085, now seen corresponding path program 19 times [2021-08-13 18:30:10,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:30:10,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484259702] [2021-08-13 18:30:10,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:30:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:30:10,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:10,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:30:10,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:30:10,271 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-08-13 18:30:10,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:30:10,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:30:10,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:30:10,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:30:10,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484259702] [2021-08-13 18:30:10,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484259702] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:30:10,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423547456] [2021-08-13 18:30:10,300 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 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 [2021-08-13 18:30:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:30:10,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:30:10,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:30:10,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:10,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:10,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:10,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:10,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:10,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:30:10,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:30:10,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:30:10,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:30:10,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:10,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:10,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:10,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:10,356 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-08-13 18:30:10,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:10,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:30:10,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:10,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:30:10,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,359 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:30:10,360 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:10,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:10,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:10,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:30:10,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:10,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:30:10,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,379 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:30:10,380 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:10,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:30:10,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:30:10,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:30:10,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:30:10,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:30:10,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:30:10,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:30:10,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,401 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:30:10,402 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:10,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:10,403 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:30:10,404 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:10,404 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-08-13 18:30:10,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:10,423 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:30:10,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:10,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:10,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:10,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:10,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:30:10,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423547456] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:30:10,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:30:10,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-08-13 18:30:10,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601292101] [2021-08-13 18:30:10,425 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 18:30:10,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:30:10,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 18:30:10,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-13 18:30:10,425 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:30:10,425 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1141 places, 1864 transitions, 441532 flow. Second operand has 11 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) [2021-08-13 18:30:10,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:30:10,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:30:10,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:30:22,365 INFO L129 PetriNetUnfolder]: 1535/5339 cut-off events. [2021-08-13 18:30:22,366 INFO L130 PetriNetUnfolder]: For 788503/791621 co-relation queries the response was YES. [2021-08-13 18:30:22,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 374229 conditions, 5339 events. 1535/5339 cut-off events. For 788503/791621 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 63985 event pairs, 16 based on Foata normal form. 20/3988 useless extension candidates. Maximal degree in co-relation 363514. Up to 2011 conditions per place. [2021-08-13 18:30:22,575 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 974 selfloop transitions, 173 changer transitions 890/2047 dead transitions. [2021-08-13 18:30:22,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1148 places, 2047 transitions, 488748 flow [2021-08-13 18:30:22,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:30:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:30:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 165 transitions. [2021-08-13 18:30:22,576 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7366071428571429 [2021-08-13 18:30:22,576 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 165 transitions. [2021-08-13 18:30:22,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 165 transitions. [2021-08-13 18:30:22,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:30:22,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 165 transitions. [2021-08-13 18:30:22,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:22,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:22,577 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:22,577 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1121 predicate places. [2021-08-13 18:30:22,577 INFO L482 AbstractCegarLoop]: Abstraction has has 1148 places, 2047 transitions, 488748 flow [2021-08-13 18:30:22,577 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 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) [2021-08-13 18:30:22,577 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:30:22,578 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:30:22,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable177 [2021-08-13 18:30:22,793 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:30:22,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:30:22,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1203807963, now seen corresponding path program 20 times [2021-08-13 18:30:22,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:30:22,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204442348] [2021-08-13 18:30:22,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:30:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:30:22,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:22,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:30:22,820 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-08-13 18:30:22,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:30:22,831 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-08-13 18:30:22,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:30:22,853 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-08-13 18:30:22,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:22,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:22,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:22,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:30:22,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:30:22,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204442348] [2021-08-13 18:30:22,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204442348] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:30:22,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295182091] [2021-08-13 18:30:22,888 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 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 [2021-08-13 18:30:22,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 18:30:22,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:30:22,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:30:22,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:30:22,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:22,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:22,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:22,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:22,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:22,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:22,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:22,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:22,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:22,945 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-08-13 18:30:22,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:22,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:22,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-08-13 18:30:22,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:22,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:22,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 18:30:22,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,948 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:30:22,948 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:22,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:22,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:30:22,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:30:22,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:22,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:22,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:22,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:22,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:22,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:30:22,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:30:22,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:22,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:30:22,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:30:22,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,992 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:30:22,993 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:22,994 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:30:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:22,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:22,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:22,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:23,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:23,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:23,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:30:23,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:23,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:30:23,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:23,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:23,044 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:30:23,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:23,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:23,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:23,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:23,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:30:23,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295182091] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:30:23,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:30:23,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-08-13 18:30:23,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736531420] [2021-08-13 18:30:23,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 18:30:23,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:30:23,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 18:30:23,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-08-13 18:30:23,046 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:30:23,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1148 places, 2047 transitions, 488748 flow. Second operand has 13 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) [2021-08-13 18:30:23,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:30:23,046 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:30:23,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:30:35,494 INFO L129 PetriNetUnfolder]: 1535/5342 cut-off events. [2021-08-13 18:30:35,494 INFO L130 PetriNetUnfolder]: For 750818/752616 co-relation queries the response was YES. [2021-08-13 18:30:35,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376803 conditions, 5342 events. 1535/5342 cut-off events. For 750818/752616 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 64088 event pairs, 11 based on Foata normal form. 16/3984 useless extension candidates. Maximal degree in co-relation 366508. Up to 2007 conditions per place. [2021-08-13 18:30:35,596 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 952 selfloop transitions, 181 changer transitions 900/2043 dead transitions. [2021-08-13 18:30:35,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1155 places, 2043 transitions, 491784 flow [2021-08-13 18:30:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:30:35,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:30:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-08-13 18:30:35,605 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7410714285714286 [2021-08-13 18:30:35,605 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-08-13 18:30:35,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-08-13 18:30:35,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:30:35,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-08-13 18:30:35,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:35,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:35,606 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:35,606 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1128 predicate places. [2021-08-13 18:30:35,606 INFO L482 AbstractCegarLoop]: Abstraction has has 1155 places, 2043 transitions, 491784 flow [2021-08-13 18:30:35,606 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 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) [2021-08-13 18:30:35,606 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:30:35,606 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:30:35,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:30:35,821 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:30:35,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:30:35,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1167659123, now seen corresponding path program 21 times [2021-08-13 18:30:35,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:30:35,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532583893] [2021-08-13 18:30:35,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:30:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:30:35,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:35,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:30:35,835 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-08-13 18:30:35,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:30:35,842 INFO L142 QuantifierPusher]: treesize reduction 5, result has 76.2 percent of original size [2021-08-13 18:30:35,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:30:35,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:35,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:35,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:35,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:35,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:30:35,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:30:35,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532583893] [2021-08-13 18:30:35,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532583893] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:30:35,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896827061] [2021-08-13 18:30:35,875 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 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 [2021-08-13 18:30:35,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-13 18:30:35,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:30:35,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:30:35,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:30:35,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:35,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:35,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:35,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:35,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:35,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:35,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:35,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:35,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:35,924 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-08-13 18:30:35,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:35,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:35,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-08-13 18:30:35,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:35,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:35,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 18:30:35,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,935 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:30:35,935 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:35,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:35,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:30:35,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:30:35,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:35,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:30:35,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:30:35,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:35,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:36,064 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-08-13 18:30:36,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:36,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:30:36,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:30:36,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-08-13 18:30:36,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,078 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:30:36,079 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:36,079 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:30:36,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:36,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:30:36,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:30:36,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:30:36,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:30:36,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:30:36,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:30:36,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:36,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:36,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:36,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:30:36,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:36,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:36,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:30:36,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:36,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:30:36,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:36,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:36,133 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:30:36,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:36,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:36,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:36,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:36,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:36,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:30:36,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896827061] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:30:36,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:30:36,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-08-13 18:30:36,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330583017] [2021-08-13 18:30:36,135 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 18:30:36,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:30:36,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 18:30:36,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-08-13 18:30:36,136 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:30:36,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1155 places, 2043 transitions, 491784 flow. Second operand has 13 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) [2021-08-13 18:30:36,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:30:36,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:30:36,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:30:51,246 INFO L129 PetriNetUnfolder]: 1583/5563 cut-off events. [2021-08-13 18:30:51,246 INFO L130 PetriNetUnfolder]: For 943526/955117 co-relation queries the response was YES. [2021-08-13 18:30:51,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 394796 conditions, 5563 events. 1583/5563 cut-off events. For 943526/955117 co-relation queries the response was YES. Maximal size of possible extension queue 724. Compared 67510 event pairs, 18 based on Foata normal form. 26/4162 useless extension candidates. Maximal degree in co-relation 383127. Up to 2065 conditions per place. [2021-08-13 18:30:51,529 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 987 selfloop transitions, 213 changer transitions 923/2133 dead transitions. [2021-08-13 18:30:51,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1162 places, 2133 transitions, 517560 flow [2021-08-13 18:30:51,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:30:51,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:30:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-08-13 18:30:51,529 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7410714285714286 [2021-08-13 18:30:51,529 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-08-13 18:30:51,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-08-13 18:30:51,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:30:51,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-08-13 18:30:51,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:51,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:51,530 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:51,530 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1135 predicate places. [2021-08-13 18:30:51,530 INFO L482 AbstractCegarLoop]: Abstraction has has 1162 places, 2133 transitions, 517560 flow [2021-08-13 18:30:51,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 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) [2021-08-13 18:30:51,530 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:30:51,530 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:30:51,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185,24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:30:51,732 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:30:51,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:30:51,732 INFO L82 PathProgramCache]: Analyzing trace with hash 62002499, now seen corresponding path program 22 times [2021-08-13 18:30:51,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:30:51,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274847016] [2021-08-13 18:30:51,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:30:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:30:51,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:51,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:30:51,745 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-08-13 18:30:51,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:30:51,753 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-08-13 18:30:51,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:30:51,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:30:51,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:30:51,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:30:51,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274847016] [2021-08-13 18:30:51,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274847016] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:30:51,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910881592] [2021-08-13 18:30:51,780 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 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 [2021-08-13 18:30:51,806 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-13 18:30:51,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:30:51,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:30:51,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:30:51,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:51,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:51,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:51,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:30:51,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:51,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:51,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:51,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:30:51,826 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-08-13 18:30:51,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:51,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-08-13 18:30:51,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:51,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 18:30:51,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,829 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:30:51,830 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:30:51,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:30:51,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:51,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:51,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:51,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:51,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:51,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:30:51,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:30:51,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:30:51,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,861 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:30:51,861 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:51,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:30:51,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:30:51,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:30:51,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:30:51,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:30:51,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:30:51,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:30:51,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,882 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:30:51,883 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:51,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:30:51,884 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:30:51,885 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:30:51,885 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-08-13 18:30:51,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:30:51,906 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:30:51,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:30:51,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:30:51,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:30:51,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910881592] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:30:51,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:30:51,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-13 18:30:51,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586797324] [2021-08-13 18:30:51,908 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:30:51,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:30:51,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:30:51,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:30:51,909 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:30:51,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1162 places, 2133 transitions, 517560 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:30:51,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:30:51,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:30:51,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:31:07,459 INFO L129 PetriNetUnfolder]: 1583/5557 cut-off events. [2021-08-13 18:31:07,459 INFO L130 PetriNetUnfolder]: For 844136/847362 co-relation queries the response was YES. [2021-08-13 18:31:07,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 397707 conditions, 5557 events. 1583/5557 cut-off events. For 844136/847362 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 67444 event pairs, 18 based on Foata normal form. 18/4150 useless extension candidates. Maximal degree in co-relation 386206. Up to 2063 conditions per place. [2021-08-13 18:31:07,563 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 1008 selfloop transitions, 183 changer transitions 930/2131 dead transitions. [2021-08-13 18:31:07,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1169 places, 2131 transitions, 521256 flow [2021-08-13 18:31:07,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:31:07,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:31:07,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 163 transitions. [2021-08-13 18:31:07,564 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7276785714285714 [2021-08-13 18:31:07,564 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 163 transitions. [2021-08-13 18:31:07,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 163 transitions. [2021-08-13 18:31:07,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:31:07,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 163 transitions. [2021-08-13 18:31:07,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:07,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:07,564 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:07,565 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1142 predicate places. [2021-08-13 18:31:07,565 INFO L482 AbstractCegarLoop]: Abstraction has has 1169 places, 2131 transitions, 521256 flow [2021-08-13 18:31:07,565 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:07,565 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:31:07,565 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:31:07,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:31:07,768 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:31:07,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:31:07,768 INFO L82 PathProgramCache]: Analyzing trace with hash 999786713, now seen corresponding path program 23 times [2021-08-13 18:31:07,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:31:07,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267245411] [2021-08-13 18:31:07,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:31:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:31:07,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:07,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:31:07,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:31:07,795 INFO L142 QuantifierPusher]: treesize reduction 5, result has 76.2 percent of original size [2021-08-13 18:31:07,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:31:07,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:31:07,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:31:07,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:31:07,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267245411] [2021-08-13 18:31:07,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267245411] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:31:07,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113487667] [2021-08-13 18:31:07,827 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 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 [2021-08-13 18:31:07,890 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 18:31:07,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:31:07,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:31:07,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:31:07,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:07,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:07,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:07,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:07,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:07,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:07,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:07,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:07,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:07,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:07,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:07,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:07,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:07,931 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-08-13 18:31:07,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:07,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:31:07,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:07,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:31:07,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,936 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:31:07,937 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:07,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:07,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:07,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:31:07,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:07,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:31:07,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,960 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:31:07,961 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:07,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:31:07,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:31:07,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:31:07,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:31:07,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:31:07,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:31:07,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:31:07,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,983 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:31:07,984 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:07,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:07,986 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:31:07,987 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:07,987 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-08-13 18:31:07,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:07,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:07,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:08,009 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:31:08,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:08,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:08,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:08,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:08,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:31:08,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113487667] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:31:08,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:31:08,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-13 18:31:08,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844586024] [2021-08-13 18:31:08,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:31:08,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:31:08,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:31:08,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:31:08,012 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:31:08,012 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1169 places, 2131 transitions, 521256 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:08,012 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:31:08,012 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:31:08,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:31:21,964 INFO L129 PetriNetUnfolder]: 1583/5545 cut-off events. [2021-08-13 18:31:21,964 INFO L130 PetriNetUnfolder]: For 842269/845531 co-relation queries the response was YES. [2021-08-13 18:31:21,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 400367 conditions, 5545 events. 1583/5545 cut-off events. For 842269/845531 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 67352 event pairs, 17 based on Foata normal form. 20/4139 useless extension candidates. Maximal degree in co-relation 389294. Up to 2059 conditions per place. [2021-08-13 18:31:22,188 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 993 selfloop transitions, 179 changer transitions 945/2127 dead transitions. [2021-08-13 18:31:22,188 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1176 places, 2127 transitions, 524436 flow [2021-08-13 18:31:22,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:31:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:31:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-08-13 18:31:22,201 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7410714285714286 [2021-08-13 18:31:22,201 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-08-13 18:31:22,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-08-13 18:31:22,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:31:22,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-08-13 18:31:22,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:22,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:22,202 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:22,202 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1149 predicate places. [2021-08-13 18:31:22,202 INFO L482 AbstractCegarLoop]: Abstraction has has 1176 places, 2127 transitions, 524436 flow [2021-08-13 18:31:22,202 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:22,202 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:31:22,202 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:31:22,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable193 [2021-08-13 18:31:22,417 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:31:22,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:31:22,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1874119463, now seen corresponding path program 24 times [2021-08-13 18:31:22,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:31:22,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024814417] [2021-08-13 18:31:22,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:31:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:31:22,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:22,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:31:22,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:31:22,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:31:22,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:22,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:31:22,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:31:22,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024814417] [2021-08-13 18:31:22,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024814417] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:31:22,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059415910] [2021-08-13 18:31:22,458 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 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 [2021-08-13 18:31:22,487 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-08-13 18:31:22,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:31:22,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:31:22,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:31:22,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:22,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:22,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:22,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:22,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:22,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:22,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:22,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:22,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:22,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:22,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:22,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:22,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:22,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:22,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:31:22,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:31:22,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:22,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:31:22,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:31:22,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:22,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:22,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:22,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:22,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:22,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:22,536 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:31:22,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:22,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:22,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:31:22,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:22,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:31:22,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:31:22,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:22,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,540 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:31:22,542 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:22,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:31:22,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:31:22,543 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:31:22,543 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:22,544 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:31:22,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:22,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:22,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:22,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:22,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:22,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:31:22,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:22,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:31:22,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:22,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:22,577 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:31:22,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:22,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:22,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:22,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:22,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:22,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:31:22,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059415910] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:31:22,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:31:22,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-13 18:31:22,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330244155] [2021-08-13 18:31:22,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:31:22,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:31:22,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:31:22,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:31:22,579 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:31:22,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1176 places, 2127 transitions, 524436 flow. Second operand has 12 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) [2021-08-13 18:31:22,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:31:22,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:31:22,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:31:36,757 INFO L129 PetriNetUnfolder]: 1595/5612 cut-off events. [2021-08-13 18:31:36,758 INFO L130 PetriNetUnfolder]: For 879588/885521 co-relation queries the response was YES. [2021-08-13 18:31:36,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407767 conditions, 5612 events. 1595/5612 cut-off events. For 879588/885521 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 68282 event pairs, 19 based on Foata normal form. 26/4192 useless extension candidates. Maximal degree in co-relation 396854. Up to 2069 conditions per place. [2021-08-13 18:31:37,021 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 988 selfloop transitions, 187 changer transitions 970/2155 dead transitions. [2021-08-13 18:31:37,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1183 places, 2155 transitions, 535480 flow [2021-08-13 18:31:37,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:31:37,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:31:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-08-13 18:31:37,022 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7589285714285714 [2021-08-13 18:31:37,022 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-08-13 18:31:37,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-08-13 18:31:37,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:31:37,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-08-13 18:31:37,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 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) [2021-08-13 18:31:37,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:37,023 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:37,023 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1156 predicate places. [2021-08-13 18:31:37,023 INFO L482 AbstractCegarLoop]: Abstraction has has 1183 places, 2155 transitions, 535480 flow [2021-08-13 18:31:37,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 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) [2021-08-13 18:31:37,023 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:31:37,023 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:31:37,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:31:37,224 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:31:37,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:31:37,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1756213139, now seen corresponding path program 25 times [2021-08-13 18:31:37,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:31:37,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500216541] [2021-08-13 18:31:37,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:31:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:31:37,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:37,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:31:37,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:31:37,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:31:37,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:37,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:31:37,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:31:37,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500216541] [2021-08-13 18:31:37,272 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500216541] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:31:37,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224350557] [2021-08-13 18:31:37,273 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 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 [2021-08-13 18:31:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:31:37,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:31:37,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:31:37,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:37,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:37,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:37,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:37,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:37,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:37,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:37,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:37,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:37,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:31:37,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:31:37,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:37,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:31:37,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:31:37,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:31:37,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:37,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:37,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:37,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:37,367 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:31:37,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:37,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:37,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:31:37,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:37,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:31:37,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:31:37,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:37,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,371 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:31:37,372 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:37,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:31:37,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:31:37,373 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:31:37,373 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:37,374 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:31:37,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:37,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:37,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:37,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:37,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:37,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:31:37,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:37,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:31:37,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:37,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:37,405 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:31:37,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:37,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:37,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:31:37,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224350557] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:31:37,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:31:37,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-13 18:31:37,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917104400] [2021-08-13 18:31:37,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:31:37,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:31:37,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:31:37,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:31:37,408 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:31:37,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1183 places, 2155 transitions, 535480 flow. Second operand has 12 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) [2021-08-13 18:31:37,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:31:37,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:31:37,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:31:54,146 INFO L129 PetriNetUnfolder]: 1695/5934 cut-off events. [2021-08-13 18:31:54,146 INFO L130 PetriNetUnfolder]: For 899676/906003 co-relation queries the response was YES. [2021-08-13 18:31:54,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 434742 conditions, 5934 events. 1695/5934 cut-off events. For 899676/906003 co-relation queries the response was YES. Maximal size of possible extension queue 765. Compared 72733 event pairs, 14 based on Foata normal form. 20/4419 useless extension candidates. Maximal degree in co-relation 423447. Up to 2214 conditions per place. [2021-08-13 18:31:54,279 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 1029 selfloop transitions, 222 changer transitions 1020/2281 dead transitions. [2021-08-13 18:31:54,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1190 places, 2281 transitions, 571136 flow [2021-08-13 18:31:54,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:31:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:31:54,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-08-13 18:31:54,280 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7633928571428571 [2021-08-13 18:31:54,280 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-08-13 18:31:54,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-08-13 18:31:54,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:31:54,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-08-13 18:31:54,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:54,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:54,281 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:31:54,281 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1163 predicate places. [2021-08-13 18:31:54,281 INFO L482 AbstractCegarLoop]: Abstraction has has 1190 places, 2281 transitions, 571136 flow [2021-08-13 18:31:54,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 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) [2021-08-13 18:31:54,281 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:31:54,281 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:31:54,481 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2021-08-13 18:31:54,482 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:31:54,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:31:54,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1237003341, now seen corresponding path program 26 times [2021-08-13 18:31:54,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:31:54,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128131591] [2021-08-13 18:31:54,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:31:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:31:54,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:54,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:31:54,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:31:54,504 INFO L142 QuantifierPusher]: treesize reduction 5, result has 76.2 percent of original size [2021-08-13 18:31:54,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:31:54,513 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-08-13 18:31:54,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:54,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:54,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:54,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:31:54,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:31:54,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128131591] [2021-08-13 18:31:54,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128131591] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:31:54,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022529703] [2021-08-13 18:31:54,545 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 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 [2021-08-13 18:31:54,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 18:31:54,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:31:54,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:31:54,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:31:54,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:54,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:54,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:54,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:54,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:31:54,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:54,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:54,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:54,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:54,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:54,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:54,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:54,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:54,603 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-08-13 18:31:54,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:54,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:54,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:31:54,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:54,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:54,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:31:54,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,606 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:31:54,606 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:54,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:54,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:54,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:54,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:54,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:54,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:54,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:54,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:31:54,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:31:54,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:54,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:31:54,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:31:54,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,627 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:31:54,627 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:54,628 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:31:54,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:31:54,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:31:54,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:54,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:31:54,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:31:54,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:31:54,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:31:54,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:31:54,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:31:54,660 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:31:54,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:54,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:54,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:54,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:31:54,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:31:54,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:31:54,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022529703] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:31:54,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:31:54,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-08-13 18:31:54,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966390506] [2021-08-13 18:31:54,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 18:31:54,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:31:54,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 18:31:54,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-13 18:31:54,663 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:31:54,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1190 places, 2281 transitions, 571136 flow. Second operand has 13 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) [2021-08-13 18:31:54,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:31:54,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:31:54,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:32:12,532 INFO L129 PetriNetUnfolder]: 1695/5956 cut-off events. [2021-08-13 18:32:12,532 INFO L130 PetriNetUnfolder]: For 894915/900901 co-relation queries the response was YES. [2021-08-13 18:32:12,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 439026 conditions, 5956 events. 1695/5956 cut-off events. For 894915/900901 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 73183 event pairs, 16 based on Foata normal form. 15/4430 useless extension candidates. Maximal degree in co-relation 427774. Up to 2221 conditions per place. [2021-08-13 18:32:12,778 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 1041 selfloop transitions, 207 changer transitions 1030/2288 dead transitions. [2021-08-13 18:32:12,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1197 places, 2288 transitions, 577356 flow [2021-08-13 18:32:12,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:32:12,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:32:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 167 transitions. [2021-08-13 18:32:12,779 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7455357142857143 [2021-08-13 18:32:12,779 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 167 transitions. [2021-08-13 18:32:12,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 167 transitions. [2021-08-13 18:32:12,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:32:12,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 167 transitions. [2021-08-13 18:32:12,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:32:12,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:32:12,780 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:32:12,780 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1170 predicate places. [2021-08-13 18:32:12,780 INFO L482 AbstractCegarLoop]: Abstraction has has 1197 places, 2288 transitions, 577356 flow [2021-08-13 18:32:12,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 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) [2021-08-13 18:32:12,780 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:32:12,780 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:32:12,980 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:32:12,981 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:32:12,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:32:12,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1035265433, now seen corresponding path program 27 times [2021-08-13 18:32:12,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:32:12,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422950081] [2021-08-13 18:32:12,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:32:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:32:12,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:12,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:12,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:12,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:12,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:12,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:13,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:32:13,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:32:13,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:13,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:32:13,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:32:13,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422950081] [2021-08-13 18:32:13,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422950081] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:32:13,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945219665] [2021-08-13 18:32:13,032 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 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 [2021-08-13 18:32:13,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-13 18:32:13,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:32:13,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:32:13,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:32:13,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:13,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:13,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:13,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:13,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:13,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:13,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:13,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:13,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:13,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:13,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:32:13,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:13,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:13,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:32:13,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:13,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:32:13,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:32:13,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:32:13,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:32:13,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:32:13,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:32:13,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:13,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:13,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:13,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:13,095 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:32:13,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:13,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:13,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:32:13,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:13,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:32:13,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:32:13,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:13,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,103 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:32:13,104 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:13,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:32:13,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:32:13,109 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:32:13,110 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:13,110 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:32:13,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:32:13,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:13,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:13,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:13,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:13,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:32:13,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:13,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:32:13,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:32:13,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:13,138 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:32:13,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:13,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:13,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:13,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:13,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:13,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:32:13,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945219665] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:32:13,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:32:13,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-08-13 18:32:13,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264254042] [2021-08-13 18:32:13,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-08-13 18:32:13,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:32:13,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-13 18:32:13,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-13 18:32:13,140 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:32:13,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1197 places, 2288 transitions, 577356 flow. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2021-08-13 18:32:13,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:32:13,140 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:32:13,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:32:30,837 INFO L129 PetriNetUnfolder]: 1695/5941 cut-off events. [2021-08-13 18:32:30,837 INFO L130 PetriNetUnfolder]: For 903188/909611 co-relation queries the response was YES. [2021-08-13 18:32:30,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 441874 conditions, 5941 events. 1695/5941 cut-off events. For 903188/909611 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 72895 event pairs, 15 based on Foata normal form. 22/4422 useless extension candidates. Maximal degree in co-relation 431071. Up to 2217 conditions per place. [2021-08-13 18:32:31,076 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 1017 selfloop transitions, 219 changer transitions 1038/2284 dead transitions. [2021-08-13 18:32:31,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1204 places, 2284 transitions, 580818 flow [2021-08-13 18:32:31,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:32:31,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:32:31,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-08-13 18:32:31,076 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7589285714285714 [2021-08-13 18:32:31,077 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-08-13 18:32:31,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-08-13 18:32:31,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:32:31,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-08-13 18:32:31,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 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) [2021-08-13 18:32:31,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:32:31,077 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:32:31,077 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1177 predicate places. [2021-08-13 18:32:31,077 INFO L482 AbstractCegarLoop]: Abstraction has has 1204 places, 2284 transitions, 580818 flow [2021-08-13 18:32:31,077 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2021-08-13 18:32:31,077 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:32:31,077 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:32:31,278 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:32:31,278 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:32:31,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:32:31,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1451239299, now seen corresponding path program 28 times [2021-08-13 18:32:31,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:32:31,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5734912] [2021-08-13 18:32:31,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:32:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:32:31,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:31,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:31,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:32:31,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:32:31,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:31,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:31,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:32:31,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:32:31,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5734912] [2021-08-13 18:32:31,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5734912] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:32:31,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903181886] [2021-08-13 18:32:31,321 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 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 [2021-08-13 18:32:31,350 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-13 18:32:31,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:32:31,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:32:31,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:32:31,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:31,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:31,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:31,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:31,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:31,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:31,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:31,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:31,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:31,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:31,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:31,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:31,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:31,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:31,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:32:31,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:32:31,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:31,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:32:31,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:32:31,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:31,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:31,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:31,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:31,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:31,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:31,400 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-08-13 18:32:31,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:31,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:31,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:32:31,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:31,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:32:31,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:32:31,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:31,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,404 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:32:31,405 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:31,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:32:31,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:32:31,406 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:32:31,407 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:31,407 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:32:31,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:32:31,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:31,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:31,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:31,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:31,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:32:31,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:31,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:32:31,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:32:31,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:31,442 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:32:31,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:31,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:31,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:31,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:31,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:31,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:32:31,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903181886] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:32:31,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:32:31,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-08-13 18:32:31,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619035287] [2021-08-13 18:32:31,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 18:32:31,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:32:31,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 18:32:31,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-08-13 18:32:31,445 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:32:31,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1204 places, 2284 transitions, 580818 flow. Second operand has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 11 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:32:31,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:32:31,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:32:31,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:32:50,253 INFO L129 PetriNetUnfolder]: 1695/5951 cut-off events. [2021-08-13 18:32:50,253 INFO L130 PetriNetUnfolder]: For 948391/960654 co-relation queries the response was YES. [2021-08-13 18:32:50,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 445032 conditions, 5951 events. 1695/5951 cut-off events. For 948391/960654 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 73104 event pairs, 18 based on Foata normal form. 26/4437 useless extension candidates. Maximal degree in co-relation 434420. Up to 2215 conditions per place. [2021-08-13 18:32:50,374 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 1024 selfloop transitions, 206 changer transitions 1042/2282 dead transitions. [2021-08-13 18:32:50,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1211 places, 2282 transitions, 584792 flow [2021-08-13 18:32:50,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:32:50,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:32:50,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-08-13 18:32:50,375 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7544642857142857 [2021-08-13 18:32:50,375 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-08-13 18:32:50,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-08-13 18:32:50,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:32:50,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-08-13 18:32:50,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:32:50,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:32:50,375 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:32:50,375 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1184 predicate places. [2021-08-13 18:32:50,375 INFO L482 AbstractCegarLoop]: Abstraction has has 1211 places, 2282 transitions, 584792 flow [2021-08-13 18:32:50,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 11 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:32:50,375 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:32:50,375 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:32:50,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:32:50,581 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:32:50,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:32:50,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1475963937, now seen corresponding path program 29 times [2021-08-13 18:32:50,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:32:50,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226730913] [2021-08-13 18:32:50,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:32:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:32:50,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:50,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:50,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:32:50,612 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-08-13 18:32:50,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:32:50,623 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-08-13 18:32:50,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:32:50,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:50,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:50,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:32:50,658 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:32:50,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226730913] [2021-08-13 18:32:50,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226730913] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:32:50,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24436964] [2021-08-13 18:32:50,658 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 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 [2021-08-13 18:32:50,725 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 18:32:50,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:32:50,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:32:50,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:32:50,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:50,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:50,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:50,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:50,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:32:50,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:50,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:50,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:50,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:32:50,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:50,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:50,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:50,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:50,749 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-08-13 18:32:50,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:50,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:50,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:32:50,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:50,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:50,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:32:50,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,753 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:32:50,753 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:50,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:32:50,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:32:50,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:50,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:32:50,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:32:50,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:50,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:32:50,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:32:50,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,772 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:32:50,773 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:50,773 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:32:50,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:32:50,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:50,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:50,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:50,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:50,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:50,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:32:50,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:50,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:32:50,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:32:50,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:32:50,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:32:50,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:32:50,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,905 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2021-08-13 18:32:50,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:32:50,911 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:32:50,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:50,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:50,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:50,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:32:50,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:32:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:32:50,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24436964] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:32:50,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:32:50,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-08-13 18:32:50,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070207243] [2021-08-13 18:32:50,912 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:32:50,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:32:50,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:32:50,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:32:50,913 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:32:50,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1211 places, 2282 transitions, 584792 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:32:50,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:32:50,913 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:32:50,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:33:08,843 INFO L129 PetriNetUnfolder]: 1695/5963 cut-off events. [2021-08-13 18:33:08,843 INFO L130 PetriNetUnfolder]: For 831564/835042 co-relation queries the response was YES. [2021-08-13 18:33:08,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 449315 conditions, 5963 events. 1695/5963 cut-off events. For 831564/835042 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 73329 event pairs, 15 based on Foata normal form. 17/4437 useless extension candidates. Maximal degree in co-relation 438756. Up to 2222 conditions per place. [2021-08-13 18:33:08,961 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 1026 selfloop transitions, 201 changer transitions 1052/2289 dead transitions. [2021-08-13 18:33:08,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1218 places, 2289 transitions, 591056 flow [2021-08-13 18:33:08,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:33:08,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:33:08,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-08-13 18:33:08,962 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7410714285714286 [2021-08-13 18:33:08,962 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-08-13 18:33:08,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-08-13 18:33:08,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:33:08,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-08-13 18:33:08,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:08,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:08,962 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:08,963 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1191 predicate places. [2021-08-13 18:33:08,963 INFO L482 AbstractCegarLoop]: Abstraction has has 1218 places, 2289 transitions, 591056 flow [2021-08-13 18:33:08,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:08,963 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:33:08,963 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:33:09,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable213 [2021-08-13 18:33:09,163 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:33:09,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:33:09,164 INFO L82 PathProgramCache]: Analyzing trace with hash 111341675, now seen corresponding path program 30 times [2021-08-13 18:33:09,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:33:09,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153766299] [2021-08-13 18:33:09,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:33:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:33:09,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:09,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:33:09,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:33:09,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:09,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:33:09,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:33:09,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:33:09,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153766299] [2021-08-13 18:33:09,207 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153766299] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:33:09,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658595061] [2021-08-13 18:33:09,207 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 [2021-08-13 18:33:09,235 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-08-13 18:33:09,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:33:09,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:33:09,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:33:09,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:09,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:09,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:09,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:09,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:09,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:09,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:09,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:09,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:09,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:09,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:33:09,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:33:09,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:09,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:33:09,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:33:09,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:33:09,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:33:09,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:33:09,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:33:09,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:33:09,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:33:09,270 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size [2021-08-13 18:33:09,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:09,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:33:09,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 18:33:09,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:09,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:33:09,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:33:09,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:09,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,274 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:33:09,274 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:09,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:33:09,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:33:09,276 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:33:09,276 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:09,276 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-08-13 18:33:09,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:09,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:33:09,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:33:09,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:33:09,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:33:09,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:33:09,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:33:09,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:09,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:33:09,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-08-13 18:33:09,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:09,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 18:33:09,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:33:09,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:09,329 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:33:09,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:09,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:09,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:09,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:09,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:33:09,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658595061] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:33:09,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:33:09,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-13 18:33:09,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195332209] [2021-08-13 18:33:09,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:33:09,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:33:09,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:33:09,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:33:09,331 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:33:09,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1218 places, 2289 transitions, 591056 flow. Second operand has 12 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) [2021-08-13 18:33:09,331 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:33:09,331 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:33:09,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:33:28,135 INFO L129 PetriNetUnfolder]: 1731/6144 cut-off events. [2021-08-13 18:33:28,135 INFO L130 PetriNetUnfolder]: For 907174/910688 co-relation queries the response was YES. [2021-08-13 18:33:28,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 465214 conditions, 6144 events. 1731/6144 cut-off events. For 907174/910688 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 76130 event pairs, 16 based on Foata normal form. 17/4574 useless extension candidates. Maximal degree in co-relation 453606. Up to 2317 conditions per place. [2021-08-13 18:33:28,372 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 1056 selfloop transitions, 218 changer transitions 1074/2358 dead transitions. [2021-08-13 18:33:28,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1225 places, 2358 transitions, 613484 flow [2021-08-13 18:33:28,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:33:28,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:33:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-08-13 18:33:28,373 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7544642857142857 [2021-08-13 18:33:28,373 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-08-13 18:33:28,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-08-13 18:33:28,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:33:28,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-08-13 18:33:28,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:28,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:28,374 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:28,374 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1198 predicate places. [2021-08-13 18:33:28,374 INFO L482 AbstractCegarLoop]: Abstraction has has 1225 places, 2358 transitions, 613484 flow [2021-08-13 18:33:28,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 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) [2021-08-13 18:33:28,374 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:33:28,374 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:33:28,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable216 [2021-08-13 18:33:28,575 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:33:28,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:33:28,575 INFO L82 PathProgramCache]: Analyzing trace with hash 850268734, now seen corresponding path program 4 times [2021-08-13 18:33:28,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:33:28,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558562942] [2021-08-13 18:33:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:33:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:33:28,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:33:28,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:33:28,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:33:28,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:33:28,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:33:28,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558562942] [2021-08-13 18:33:28,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558562942] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:33:28,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636736383] [2021-08-13 18:33:28,596 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 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 [2021-08-13 18:33:28,624 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-13 18:33:28,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:33:28,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-13 18:33:28,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:33:28,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:28,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:28,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:33:28,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:28,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:28,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:33:28,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,651 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-08-13 18:33:28,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:28,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:33:28,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-08-13 18:33:28,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:28,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:33:28,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:33:28,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:28,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,655 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:33:28,655 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:28,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:28,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,657 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:33:28,660 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:28,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:28,662 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:33:28,663 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:28,663 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-08-13 18:33:28,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:28,683 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-08-13 18:33:28,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:28,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:28,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:33:28,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636736383] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:33:28,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:33:28,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-08-13 18:33:28,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816766161] [2021-08-13 18:33:28,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 18:33:28,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:33:28,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 18:33:28,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-08-13 18:33:28,685 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 28 [2021-08-13 18:33:28,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1225 places, 2358 transitions, 613484 flow. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:28,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:33:28,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 28 [2021-08-13 18:33:28,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:33:50,029 INFO L129 PetriNetUnfolder]: 1857/6529 cut-off events. [2021-08-13 18:33:50,037 INFO L130 PetriNetUnfolder]: For 1085705/1092200 co-relation queries the response was YES. [2021-08-13 18:33:50,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 498666 conditions, 6529 events. 1857/6529 cut-off events. For 1085705/1092200 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 81361 event pairs, 16 based on Foata normal form. 10/4840 useless extension candidates. Maximal degree in co-relation 485983. Up to 2399 conditions per place. [2021-08-13 18:33:50,291 INFO L132 encePairwiseOnDemand]: 21/28 looper letters, 888 selfloop transitions, 156 changer transitions 1118/2485 dead transitions. [2021-08-13 18:33:50,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1232 places, 2485 transitions, 650268 flow [2021-08-13 18:33:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 18:33:50,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 18:33:50,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 180 transitions. [2021-08-13 18:33:50,292 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8035714285714286 [2021-08-13 18:33:50,292 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 180 transitions. [2021-08-13 18:33:50,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 180 transitions. [2021-08-13 18:33:50,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:33:50,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 180 transitions. [2021-08-13 18:33:50,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.5) internal successors, (180), 8 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:50,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:50,293 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:50,293 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1205 predicate places. [2021-08-13 18:33:50,293 INFO L482 AbstractCegarLoop]: Abstraction has has 1232 places, 2485 transitions, 650268 flow [2021-08-13 18:33:50,293 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:33:50,293 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:33:50,293 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:33:50,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:33:50,494 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:33:50,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:33:50,494 INFO L82 PathProgramCache]: Analyzing trace with hash -327789327, now seen corresponding path program 4 times [2021-08-13 18:33:50,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:33:50,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375920554] [2021-08-13 18:33:50,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:33:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:33:50,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:33:50,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:33:50,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:33:50,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:33:50,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375920554] [2021-08-13 18:33:50,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375920554] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:33:50,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814919507] [2021-08-13 18:33:50,513 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 [2021-08-13 18:33:50,554 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-13 18:33:50,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:33:50,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-13 18:33:50,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:33:50,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:50,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:50,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:33:50,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:50,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:33:50,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:33:50,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:33:50,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:50,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:50,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:50,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:50,577 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-08-13 18:33:50,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:50,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:33:50,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-08-13 18:33:50,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:50,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:33:50,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-08-13 18:33:50,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:50,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,581 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:33:50,582 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:50,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:50,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:50,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:50,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,584 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:33:50,584 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:50,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:50,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:33:50,585 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:33:50,586 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:33:50,586 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-08-13 18:33:50,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 18:33:50,604 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-08-13 18:33:50,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:33:50,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:33:50,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:33:50,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814919507] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:33:50,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:33:50,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-08-13 18:33:50,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748313950] [2021-08-13 18:33:50,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 18:33:50,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:33:50,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 18:33:50,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 18:33:50,607 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 28 [2021-08-13 18:33:50,607 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1232 places, 2485 transitions, 650268 flow. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 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) [2021-08-13 18:33:50,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:33:50,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 28 [2021-08-13 18:33:50,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:34:14,067 INFO L129 PetriNetUnfolder]: 1969/6805 cut-off events. [2021-08-13 18:34:14,067 INFO L130 PetriNetUnfolder]: For 1093403/1099961 co-relation queries the response was YES. [2021-08-13 18:34:14,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 525711 conditions, 6805 events. 1969/6805 cut-off events. For 1093403/1099961 co-relation queries the response was YES. Maximal size of possible extension queue 889. Compared 84754 event pairs, 8 based on Foata normal form. 14/5025 useless extension candidates. Maximal degree in co-relation 512916. Up to 2535 conditions per place. [2021-08-13 18:34:14,225 INFO L132 encePairwiseOnDemand]: 21/28 looper letters, 897 selfloop transitions, 175 changer transitions 1160/2589 dead transitions. [2021-08-13 18:34:14,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1240 places, 2589 transitions, 681076 flow [2021-08-13 18:34:14,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 18:34:14,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 18:34:14,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 202 transitions. [2021-08-13 18:34:14,226 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8015873015873016 [2021-08-13 18:34:14,226 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 202 transitions. [2021-08-13 18:34:14,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 202 transitions. [2021-08-13 18:34:14,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:34:14,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 202 transitions. [2021-08-13 18:34:14,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 22.444444444444443) internal successors, (202), 9 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) [2021-08-13 18:34:14,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:34:14,227 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:34:14,227 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1213 predicate places. [2021-08-13 18:34:14,227 INFO L482 AbstractCegarLoop]: Abstraction has has 1240 places, 2589 transitions, 681076 flow [2021-08-13 18:34:14,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 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) [2021-08-13 18:34:14,227 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:34:14,227 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:34:14,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable223 [2021-08-13 18:34:14,428 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:34:14,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:34:14,428 INFO L82 PathProgramCache]: Analyzing trace with hash 818109702, now seen corresponding path program 5 times [2021-08-13 18:34:14,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:34:14,428 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235834421] [2021-08-13 18:34:14,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:34:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:34:14,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,461 INFO L142 QuantifierPusher]: treesize reduction 13, result has 18.8 percent of original size [2021-08-13 18:34:14,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,462 INFO L142 QuantifierPusher]: treesize reduction 14, result has 36.4 percent of original size [2021-08-13 18:34:14,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:34:14,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 18:34:14,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:34:14,474 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:34:14,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235834421] [2021-08-13 18:34:14,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235834421] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:34:14,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719801029] [2021-08-13 18:34:14,475 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 [2021-08-13 18:34:14,504 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-13 18:34:14,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-13 18:34:14,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-13 18:34:14,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:34:14,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:14,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:34:14,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:14,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:14,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:34:14,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:14,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:34:14,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:34:14,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:34:14,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:34:14,533 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-08-13 18:34:14,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:34:14,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:14,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-13 18:34:14,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 18:34:14,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:14,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,536 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:34:14,536 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:14,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,538 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:34:14,539 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:14,539 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-08-13 18:34:14,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:14,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:14,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:14,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:14,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:14,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:14,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:14,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 18:34:14,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:14,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-13 18:34:14,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 18:34:14,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 18:34:14,576 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-08-13 18:34:14,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:14,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:14,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:34:14,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719801029] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:34:14,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:34:14,578 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-08-13 18:34:14,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161734513] [2021-08-13 18:34:14,578 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-13 18:34:14,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:34:14,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-13 18:34:14,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-08-13 18:34:14,579 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 28 [2021-08-13 18:34:14,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1240 places, 2589 transitions, 681076 flow. Second operand has 11 states, 11 states have (on average 17.363636363636363) internal successors, (191), 11 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:34:14,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:34:14,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 28 [2021-08-13 18:34:14,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:34:40,955 INFO L129 PetriNetUnfolder]: 2295/7671 cut-off events. [2021-08-13 18:34:40,955 INFO L130 PetriNetUnfolder]: For 1238443/1244974 co-relation queries the response was YES. [2021-08-13 18:34:40,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 605555 conditions, 7671 events. 2295/7671 cut-off events. For 1238443/1244974 co-relation queries the response was YES. Maximal size of possible extension queue 1001. Compared 96026 event pairs, 4 based on Foata normal form. 26/5625 useless extension candidates. Maximal degree in co-relation 592298. Up to 2965 conditions per place. [2021-08-13 18:34:41,117 INFO L132 encePairwiseOnDemand]: 18/28 looper letters, 1342 selfloop transitions, 218 changer transitions 1355/2925 dead transitions. [2021-08-13 18:34:41,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1254 places, 2925 transitions, 775882 flow [2021-08-13 18:34:41,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-13 18:34:41,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-08-13 18:34:41,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 319 transitions. [2021-08-13 18:34:41,118 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7595238095238095 [2021-08-13 18:34:41,118 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 319 transitions. [2021-08-13 18:34:41,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 319 transitions. [2021-08-13 18:34:41,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:34:41,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 319 transitions. [2021-08-13 18:34:41,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 21.266666666666666) internal successors, (319), 15 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:34:41,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 28.0) internal successors, (448), 16 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:34:41,119 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 28.0) internal successors, (448), 16 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:34:41,119 INFO L348 CegarLoopForPetriNet]: 27 programPoint places, 1227 predicate places. [2021-08-13 18:34:41,119 INFO L482 AbstractCegarLoop]: Abstraction has has 1254 places, 2925 transitions, 775882 flow [2021-08-13 18:34:41,119 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.363636363636363) internal successors, (191), 11 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:34:41,119 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:34:41,119 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:34:41,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:34:41,333 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:34:41,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:34:41,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1268358295, now seen corresponding path program 31 times [2021-08-13 18:34:41,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:34:41,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427013838] [2021-08-13 18:34:41,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:34:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:34:41,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:34:41,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:34:41,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-08-13 18:34:41,353 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-08-13 18:34:41,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:34:41,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:34:41,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:34:41,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:34:41,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427013838] [2021-08-13 18:34:41,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427013838] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:34:41,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921270587] [2021-08-13 18:34:41,379 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 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 [2021-08-13 18:34:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:34:41,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-13 18:34:41,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-13 18:34:41,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:34:41,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:34:41,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:34:41,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-13 18:34:41,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:41,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:41,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:41,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:41,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:41,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:41,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:41,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 18:34:41,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:41,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:41,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:41,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:41,436 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-08-13 18:34:41,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:41,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:34:41,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:41,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:34:41,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,439 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:34:41,439 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:34:41,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:34:41,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:41,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-08-13 18:34:41,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 18:34:41,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:34:41,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,457 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-08-13 18:34:41,458 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:41,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:34:41,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 18:34:41,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:34:41,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:34:41,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-13 18:34:41,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 18:34:41,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-08-13 18:34:41,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,477 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:34:41,478 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:41,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 18:34:41,479 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-08-13 18:34:41,480 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-08-13 18:34:41,480 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-08-13 18:34:41,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 18:34:41,499 INFO L142 QuantifierPusher]: treesize reduction 41, result has 2.4 percent of original size [2021-08-13 18:34:41,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:34:41,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:34:41,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 18:34:41,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921270587] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-13 18:34:41,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-13 18:34:41,500 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-08-13 18:34:41,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226750922] [2021-08-13 18:34:41,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-13 18:34:41,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:34:41,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-13 18:34:41,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-08-13 18:34:41,501 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 28 [2021-08-13 18:34:41,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1254 places, 2925 transitions, 775882 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:34:41,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:34:41,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 28 [2021-08-13 18:34:41,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-08-13 18:34:46,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 18:34:46,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230,37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-13 18:34:46,770 WARN L547 AbstractCegarLoop]: Verification canceled [2021-08-13 18:34:46,772 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 18:34:46,773 WARN L188 ceAbstractionStarter]: Timeout [2021-08-13 18:34:46,773 INFO L202 PluginConnector]: Adding new model word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 06:34:46 BasicIcfg [2021-08-13 18:34:46,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 18:34:46,774 INFO L168 Benchmark]: Toolchain (without parser) took 508174.46 ms. Allocated memory was 226.5 MB in the beginning and 7.1 GB in the end (delta: 6.9 GB). Free memory was 206.5 MB in the beginning and 2.9 GB in the end (delta: -2.7 GB). Peak memory consumption was 4.5 GB. Max. memory is 8.0 GB. [2021-08-13 18:34:46,774 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 226.5 MB. Free memory was 207.9 MB in the beginning and 207.8 MB in the end (delta: 85.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 18:34:46,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.23 ms. Allocated memory is still 226.5 MB. Free memory was 206.4 MB in the beginning and 204.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-13 18:34:46,774 INFO L168 Benchmark]: Boogie Preprocessor took 16.28 ms. Allocated memory is still 226.5 MB. Free memory was 204.9 MB in the beginning and 203.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 18:34:46,774 INFO L168 Benchmark]: RCFGBuilder took 452.75 ms. Allocated memory is still 226.5 MB. Free memory was 203.8 MB in the beginning and 178.8 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-08-13 18:34:46,774 INFO L168 Benchmark]: TraceAbstraction took 507676.81 ms. Allocated memory was 226.5 MB in the beginning and 7.1 GB in the end (delta: 6.9 GB). Free memory was 178.4 MB in the beginning and 2.9 GB in the end (delta: -2.8 GB). Peak memory consumption was 4.5 GB. Max. memory is 8.0 GB. [2021-08-13 18:34:46,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 226.5 MB. Free memory was 207.9 MB in the beginning and 207.8 MB in the end (delta: 85.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.23 ms. Allocated memory is still 226.5 MB. Free memory was 206.4 MB in the beginning and 204.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.28 ms. Allocated memory is still 226.5 MB. Free memory was 204.9 MB in the beginning and 203.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 452.75 ms. Allocated memory is still 226.5 MB. Free memory was 203.8 MB in the beginning and 178.8 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 507676.81 ms. Allocated memory was 226.5 MB in the beginning and 7.1 GB in the end (delta: 6.9 GB). Free memory was 178.4 MB in the beginning and 2.9 GB in the end (delta: -2.8 GB). Peak memory consumption was 4.5 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (12states, 15/28 universal loopers) in iteration 145,while PetriNetUnfolder was constructing finite prefix that currently has 105155 conditions, 900 events (413/899 cut-off events. For 261712/268458 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 8318 event pairs, 2 based on Foata normal form. 0/965 useless extension candidates. Maximal degree in co-relation 105000. Up to 508 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 38 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 507557.6ms, OverallIterations: 145, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 486119.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 38.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3083 SDtfs, 4670 SDslu, 5690 SDs, 0 SdLazy, 18723 SolverSat, 707 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9303.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2389 GetRequests, 750 SyntacticMatches, 32 SemanticMatches, 1607 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1882 ImplicationChecksByTransitivity, 19642.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=775882occurred in iteration=144, InterpolantAutomatonStates: 1371, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 231.1ms SsaConstructionTime, 656.1ms SatisfiabilityAnalysisTime, 11546.2ms InterpolantComputationTime, 3130 NumberOfCodeBlocks, 3130 NumberOfCodeBlocksAsserted, 202 NumberOfCheckSat, 2949 ConstructedInterpolants, 0 QuantifiedInterpolants, 22978 SizeOfPredicates, 208 NumberOfNonLiveVariables, 2340 ConjunctsInSsa, 347 ConjunctsInUnsatCore, 181 InterpolantComputations, 109 PerfectInterpolantSequences, 4/76 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown