/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 22:24:31,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 22:24:31,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 22:24:31,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-12 22:24:31,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-12 22:24:31,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-12 22:24:31,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-12 22:24:31,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-12 22:24:31,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-12 22:24:31,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-12 22:24:31,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-12 22:24:31,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-12 22:24:31,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-12 22:24:31,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-12 22:24:31,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-12 22:24:31,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-12 22:24:31,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-12 22:24:31,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-12 22:24:31,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-12 22:24:31,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-12 22:24:31,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-12 22:24:31,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-12 22:24:31,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-12 22:24:31,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-12 22:24:31,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-12 22:24:31,713 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-08-12 22:24:31,735 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 22:24:31,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 22:24:31,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 22:24:31,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 22:24:31,736 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 22:24:31,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 22:24:31,736 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 22:24:31,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 22:24:31,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 22:24:31,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 22:24:31,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 22:24:31,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 22:24:31,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 22:24:31,737 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 22:24:31,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 22:24:31,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 22:24:31,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 22:24:31,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 22:24:31,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 22:24:31,738 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 22:24:31,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 22:24:31,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 22:24:31,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 22:24:31,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 22:24:31,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-12 22:24:31,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 22:24:31,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 22:24:31,739 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 22:24:31,739 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-12 22:24:31,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 22:24:31,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 22:24:31,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 22:24:31,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 22:24:31,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 22:24:31,998 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-12 22:24:31,999 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-12 22:24:32,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-3.wvr.bpl [2021-08-12 22:24:32,001 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-3.wvr.bpl' [2021-08-12 22:24:32,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 22:24:32,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-12 22:24:32,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 22:24:32,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 22:24:32,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 22:24:32,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 10:24:32" (1/1) ... [2021-08-12 22:24:32,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 10:24:32" (1/1) ... [2021-08-12 22:24:32,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 22:24:32,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 22:24:32,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 22:24:32,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 22:24:32,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 10:24:32" (1/1) ... [2021-08-12 22:24:32,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 10:24:32" (1/1) ... [2021-08-12 22:24:32,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 10:24:32" (1/1) ... [2021-08-12 22:24:32,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 10:24:32" (1/1) ... [2021-08-12 22:24:32,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 10:24:32" (1/1) ... [2021-08-12 22:24:32,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 10:24:32" (1/1) ... [2021-08-12 22:24:32,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 10:24:32" (1/1) ... [2021-08-12 22:24:32,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 22:24:32,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 22:24:32,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 22:24:32,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 22:24:32,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 10:24:32" (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 [2021-08-12 22:24:32,123 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-12 22:24:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-12 22:24:32,124 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-12 22:24:32,125 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-12 22:24:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-12 22:24:32,125 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-12 22:24:32,125 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-12 22:24:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 22:24:32,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 22:24:32,126 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-12 22:24:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-12 22:24:32,126 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-12 22:24:32,126 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 22:24:32,282 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 22:24:32,282 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-12 22:24:32,283 INFO L202 PluginConnector]: Adding new model ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 10:24:32 BoogieIcfgContainer [2021-08-12 22:24:32,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 22:24:32,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 22:24:32,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 22:24:32,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 22:24:32,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 10:24:32" (1/2) ... [2021-08-12 22:24:32,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247f14ee and model type ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 10:24:32, skipping insertion in model container [2021-08-12 22:24:32,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 10:24:32" (2/2) ... [2021-08-12 22:24:32,289 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-3.wvr.bpl [2021-08-12 22:24:32,292 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 22:24:32,292 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-12 22:24:32,293 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 22:24:32,332 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-08-12 22:24:32,347 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-12 22:24:32,361 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 22:24:32,361 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-12 22:24:32,361 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 22:24:32,362 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 22:24:32,362 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 22:24:32,362 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 22:24:32,362 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 22:24:32,362 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 22:24:32,379 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 30 transitions, 84 flow [2021-08-12 22:24:32,396 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-08-12 22:24:32,396 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-08-12 22:24:32,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 27 events. 0/27 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-12 22:24:32,397 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 30 transitions, 84 flow [2021-08-12 22:24:32,400 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 25 transitions, 68 flow [2021-08-12 22:24:32,408 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-08-12 22:24:32,408 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-08-12 22:24:32,408 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:32,409 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:32,409 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:32,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:32,412 INFO L82 PathProgramCache]: Analyzing trace with hash 928567053, now seen corresponding path program 1 times [2021-08-12 22:24:32,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:32,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599637707] [2021-08-12 22:24:32,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:32,536 INFO L142 QuantifierPusher]: treesize reduction 11, result has 52.2 percent of original size [2021-08-12 22:24:32,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-08-12 22:24:32,556 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-08-12 22:24:32,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-08-12 22:24:32,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:32,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-12 22:24:32,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:32,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:32,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:32,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-12 22:24:32,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:32,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:32,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:32,604 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:32,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599637707] [2021-08-12 22:24:32,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599637707] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:32,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:32,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-12 22:24:32,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273758106] [2021-08-12 22:24:32,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 22:24:32,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:32,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 22:24:32,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-12 22:24:32,624 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 30 [2021-08-12 22:24:32,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 68 flow. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:32,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:32,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 30 [2021-08-12 22:24:32,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:32,707 INFO L129 PetriNetUnfolder]: 43/165 cut-off events. [2021-08-12 22:24:32,707 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-08-12 22:24:32,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 165 events. 43/165 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 803 event pairs, 18 based on Foata normal form. 1/165 useless extension candidates. Maximal degree in co-relation 255. Up to 54 conditions per place. [2021-08-12 22:24:32,711 INFO L132 encePairwiseOnDemand]: 21/30 looper letters, 13 selfloop transitions, 7 changer transitions 1/37 dead transitions. [2021-08-12 22:24:32,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 37 transitions, 134 flow [2021-08-12 22:24:32,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-12 22:24:32,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-12 22:24:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2021-08-12 22:24:32,722 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8133333333333334 [2021-08-12 22:24:32,722 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 122 transitions. [2021-08-12 22:24:32,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 122 transitions. [2021-08-12 22:24:32,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:32,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 122 transitions. [2021-08-12 22:24:32,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:32,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 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) [2021-08-12 22:24:32,729 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 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) [2021-08-12 22:24:32,730 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2021-08-12 22:24:32,730 INFO L482 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 134 flow [2021-08-12 22:24:32,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:32,730 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:32,730 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:32,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 22:24:32,731 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:32,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:32,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1387160825, now seen corresponding path program 2 times [2021-08-12 22:24:32,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:32,744 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537915594] [2021-08-12 22:24:32,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:32,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:32,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:32,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:32,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:32,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:32,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:32,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:32,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:32,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:32,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:32,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:32,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537915594] [2021-08-12 22:24:32,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537915594] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:32,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:32,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-12 22:24:32,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258992400] [2021-08-12 22:24:32,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 22:24:32,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:32,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 22:24:32,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-12 22:24:32,796 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 30 [2021-08-12 22:24:32,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 134 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:32,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:32,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 30 [2021-08-12 22:24:32,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:32,970 INFO L129 PetriNetUnfolder]: 270/670 cut-off events. [2021-08-12 22:24:32,970 INFO L130 PetriNetUnfolder]: For 137/142 co-relation queries the response was YES. [2021-08-12 22:24:32,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1408 conditions, 670 events. 270/670 cut-off events. For 137/142 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4316 event pairs, 80 based on Foata normal form. 10/659 useless extension candidates. Maximal degree in co-relation 1383. Up to 197 conditions per place. [2021-08-12 22:24:32,976 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 25 selfloop transitions, 22 changer transitions 0/67 dead transitions. [2021-08-12 22:24:32,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 67 transitions, 316 flow [2021-08-12 22:24:32,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-12 22:24:32,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-12 22:24:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 150 transitions. [2021-08-12 22:24:32,982 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-08-12 22:24:32,982 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 150 transitions. [2021-08-12 22:24:32,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 150 transitions. [2021-08-12 22:24:32,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:32,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 150 transitions. [2021-08-12 22:24:32,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:32,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:32,990 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:32,990 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2021-08-12 22:24:32,993 INFO L482 AbstractCegarLoop]: Abstraction has has 44 places, 67 transitions, 316 flow [2021-08-12 22:24:32,993 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:32,993 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:32,993 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:32,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-12 22:24:32,993 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:32,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:32,994 INFO L82 PathProgramCache]: Analyzing trace with hash 2079240233, now seen corresponding path program 3 times [2021-08-12 22:24:32,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:32,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131693822] [2021-08-12 22:24:32,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:33,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:33,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:33,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:33,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:33,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131693822] [2021-08-12 22:24:33,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131693822] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:33,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:33,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-12 22:24:33,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683946298] [2021-08-12 22:24:33,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-12 22:24:33,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:33,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-12 22:24:33,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-12 22:24:33,064 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 30 [2021-08-12 22:24:33,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 67 transitions, 316 flow. Second operand has 5 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) [2021-08-12 22:24:33,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:33,065 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 30 [2021-08-12 22:24:33,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:33,175 INFO L129 PetriNetUnfolder]: 275/701 cut-off events. [2021-08-12 22:24:33,175 INFO L130 PetriNetUnfolder]: For 355/403 co-relation queries the response was YES. [2021-08-12 22:24:33,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1879 conditions, 701 events. 275/701 cut-off events. For 355/403 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4603 event pairs, 67 based on Foata normal form. 36/720 useless extension candidates. Maximal degree in co-relation 1852. Up to 302 conditions per place. [2021-08-12 22:24:33,183 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 52 selfloop transitions, 18 changer transitions 1/91 dead transitions. [2021-08-12 22:24:33,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 91 transitions, 570 flow [2021-08-12 22:24:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-12 22:24:33,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-12 22:24:33,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2021-08-12 22:24:33,185 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8266666666666667 [2021-08-12 22:24:33,185 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 124 transitions. [2021-08-12 22:24:33,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 124 transitions. [2021-08-12 22:24:33,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:33,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 124 transitions. [2021-08-12 22:24:33,186 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) [2021-08-12 22:24:33,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 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) [2021-08-12 22:24:33,188 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 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) [2021-08-12 22:24:33,188 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2021-08-12 22:24:33,188 INFO L482 AbstractCegarLoop]: Abstraction has has 48 places, 91 transitions, 570 flow [2021-08-12 22:24:33,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 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) [2021-08-12 22:24:33,188 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:33,189 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:33,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-12 22:24:33,189 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:33,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1873490551, now seen corresponding path program 4 times [2021-08-12 22:24:33,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:33,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213063041] [2021-08-12 22:24:33,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:33,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:33,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:33,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:33,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:33,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213063041] [2021-08-12 22:24:33,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213063041] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:33,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:33,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-12 22:24:33,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495497866] [2021-08-12 22:24:33,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 22:24:33,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:33,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 22:24:33,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-12 22:24:33,239 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 30 [2021-08-12 22:24:33,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 91 transitions, 570 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:33,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:33,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 30 [2021-08-12 22:24:33,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:33,367 INFO L129 PetriNetUnfolder]: 284/735 cut-off events. [2021-08-12 22:24:33,367 INFO L130 PetriNetUnfolder]: For 781/885 co-relation queries the response was YES. [2021-08-12 22:24:33,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2390 conditions, 735 events. 284/735 cut-off events. For 781/885 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4909 event pairs, 75 based on Foata normal form. 67/784 useless extension candidates. Maximal degree in co-relation 2361. Up to 312 conditions per place. [2021-08-12 22:24:33,371 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 36 selfloop transitions, 35 changer transitions 6/97 dead transitions. [2021-08-12 22:24:33,371 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 97 transitions, 760 flow [2021-08-12 22:24:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-12 22:24:33,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-12 22:24:33,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 150 transitions. [2021-08-12 22:24:33,372 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-08-12 22:24:33,373 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 150 transitions. [2021-08-12 22:24:33,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 150 transitions. [2021-08-12 22:24:33,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:33,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 150 transitions. [2021-08-12 22:24:33,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:33,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:33,375 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:33,375 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 18 predicate places. [2021-08-12 22:24:33,375 INFO L482 AbstractCegarLoop]: Abstraction has has 53 places, 97 transitions, 760 flow [2021-08-12 22:24:33,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:33,375 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:33,376 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:33,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-12 22:24:33,376 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:33,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:33,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1603892967, now seen corresponding path program 5 times [2021-08-12 22:24:33,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:33,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246040289] [2021-08-12 22:24:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:33,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:33,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:33,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:33,419 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246040289] [2021-08-12 22:24:33,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246040289] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:33,419 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:33,419 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-12 22:24:33,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325816594] [2021-08-12 22:24:33,420 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-12 22:24:33,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:33,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-12 22:24:33,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-12 22:24:33,420 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 30 [2021-08-12 22:24:33,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 97 transitions, 760 flow. Second operand has 5 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) [2021-08-12 22:24:33,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:33,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 30 [2021-08-12 22:24:33,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:33,506 INFO L129 PetriNetUnfolder]: 244/658 cut-off events. [2021-08-12 22:24:33,506 INFO L130 PetriNetUnfolder]: For 1272/1352 co-relation queries the response was YES. [2021-08-12 22:24:33,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2555 conditions, 658 events. 244/658 cut-off events. For 1272/1352 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4324 event pairs, 61 based on Foata normal form. 47/691 useless extension candidates. Maximal degree in co-relation 2524. Up to 287 conditions per place. [2021-08-12 22:24:33,510 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 52 selfloop transitions, 20 changer transitions 13/105 dead transitions. [2021-08-12 22:24:33,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 105 transitions, 998 flow [2021-08-12 22:24:33,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-12 22:24:33,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-12 22:24:33,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2021-08-12 22:24:33,511 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8266666666666667 [2021-08-12 22:24:33,511 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 124 transitions. [2021-08-12 22:24:33,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 124 transitions. [2021-08-12 22:24:33,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:33,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 124 transitions. [2021-08-12 22:24:33,512 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) [2021-08-12 22:24:33,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 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) [2021-08-12 22:24:33,513 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 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) [2021-08-12 22:24:33,513 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2021-08-12 22:24:33,513 INFO L482 AbstractCegarLoop]: Abstraction has has 57 places, 105 transitions, 998 flow [2021-08-12 22:24:33,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 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) [2021-08-12 22:24:33,513 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:33,513 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:33,513 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-12 22:24:33,514 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:33,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:33,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1121355797, now seen corresponding path program 6 times [2021-08-12 22:24:33,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:33,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639577682] [2021-08-12 22:24:33,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:33,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:33,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:33,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:33,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639577682] [2021-08-12 22:24:33,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639577682] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:33,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:33,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-12 22:24:33,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128781957] [2021-08-12 22:24:33,568 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 22:24:33,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:33,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 22:24:33,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-12 22:24:33,569 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 30 [2021-08-12 22:24:33,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 105 transitions, 998 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:33,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:33,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 30 [2021-08-12 22:24:33,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:33,662 INFO L129 PetriNetUnfolder]: 227/616 cut-off events. [2021-08-12 22:24:33,662 INFO L130 PetriNetUnfolder]: For 1895/1989 co-relation queries the response was YES. [2021-08-12 22:24:33,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2769 conditions, 616 events. 227/616 cut-off events. For 1895/1989 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3994 event pairs, 61 based on Foata normal form. 29/631 useless extension candidates. Maximal degree in co-relation 2736. Up to 270 conditions per place. [2021-08-12 22:24:33,666 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 38 selfloop transitions, 34 changer transitions 17/109 dead transitions. [2021-08-12 22:24:33,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 109 transitions, 1216 flow [2021-08-12 22:24:33,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-12 22:24:33,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-12 22:24:33,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 150 transitions. [2021-08-12 22:24:33,667 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-08-12 22:24:33,667 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 150 transitions. [2021-08-12 22:24:33,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 150 transitions. [2021-08-12 22:24:33,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:33,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 150 transitions. [2021-08-12 22:24:33,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:33,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:33,668 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:33,668 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 27 predicate places. [2021-08-12 22:24:33,668 INFO L482 AbstractCegarLoop]: Abstraction has has 62 places, 109 transitions, 1216 flow [2021-08-12 22:24:33,669 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:33,669 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:33,669 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:33,669 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-12 22:24:33,669 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:33,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:33,669 INFO L82 PathProgramCache]: Analyzing trace with hash 175495729, now seen corresponding path program 7 times [2021-08-12 22:24:33,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:33,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221234530] [2021-08-12 22:24:33,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:33,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:33,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:33,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:33,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221234530] [2021-08-12 22:24:33,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221234530] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:33,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:33,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 22:24:33,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299938404] [2021-08-12 22:24:33,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 22:24:33,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:33,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 22:24:33,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-12 22:24:33,728 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 30 [2021-08-12 22:24:33,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 109 transitions, 1216 flow. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:33,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:33,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 30 [2021-08-12 22:24:33,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:33,837 INFO L129 PetriNetUnfolder]: 149/445 cut-off events. [2021-08-12 22:24:33,837 INFO L130 PetriNetUnfolder]: For 2029/2097 co-relation queries the response was YES. [2021-08-12 22:24:33,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2311 conditions, 445 events. 149/445 cut-off events. For 2029/2097 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2677 event pairs, 49 based on Foata normal form. 26/464 useless extension candidates. Maximal degree in co-relation 2276. Up to 212 conditions per place. [2021-08-12 22:24:33,839 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 25 selfloop transitions, 20 changer transitions 39/101 dead transitions. [2021-08-12 22:24:33,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 101 transitions, 1286 flow [2021-08-12 22:24:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-12 22:24:33,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-12 22:24:33,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 199 transitions. [2021-08-12 22:24:33,840 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8291666666666667 [2021-08-12 22:24:33,841 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 199 transitions. [2021-08-12 22:24:33,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 199 transitions. [2021-08-12 22:24:33,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:33,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 199 transitions. [2021-08-12 22:24:33,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 24.875) internal successors, (199), 8 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) [2021-08-12 22:24:33,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 30.0) internal successors, (270), 9 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:33,842 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 30.0) internal successors, (270), 9 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:33,842 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 34 predicate places. [2021-08-12 22:24:33,842 INFO L482 AbstractCegarLoop]: Abstraction has has 69 places, 101 transitions, 1286 flow [2021-08-12 22:24:33,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:33,842 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:33,842 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:33,843 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-12 22:24:33,843 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:33,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:33,843 INFO L82 PathProgramCache]: Analyzing trace with hash -140295209, now seen corresponding path program 8 times [2021-08-12 22:24:33,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:33,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471616290] [2021-08-12 22:24:33,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:33,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:33,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:33,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:33,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:33,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:33,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471616290] [2021-08-12 22:24:33,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471616290] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:33,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:33,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 22:24:33,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026343945] [2021-08-12 22:24:33,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 22:24:33,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:33,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 22:24:33,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-12 22:24:33,896 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 30 [2021-08-12 22:24:33,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 101 transitions, 1286 flow. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:33,896 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:33,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 30 [2021-08-12 22:24:33,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:34,036 INFO L129 PetriNetUnfolder]: 134/411 cut-off events. [2021-08-12 22:24:34,036 INFO L130 PetriNetUnfolder]: For 2602/2703 co-relation queries the response was YES. [2021-08-12 22:24:34,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2420 conditions, 411 events. 134/411 cut-off events. For 2602/2703 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2477 event pairs, 46 based on Foata normal form. 16/419 useless extension candidates. Maximal degree in co-relation 2383. Up to 196 conditions per place. [2021-08-12 22:24:34,038 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 20 selfloop transitions, 14 changer transitions 58/109 dead transitions. [2021-08-12 22:24:34,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 109 transitions, 1580 flow [2021-08-12 22:24:34,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-12 22:24:34,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-12 22:24:34,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 199 transitions. [2021-08-12 22:24:34,040 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8291666666666667 [2021-08-12 22:24:34,040 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 199 transitions. [2021-08-12 22:24:34,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 199 transitions. [2021-08-12 22:24:34,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:34,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 199 transitions. [2021-08-12 22:24:34,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 24.875) internal successors, (199), 8 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) [2021-08-12 22:24:34,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 30.0) internal successors, (270), 9 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:34,041 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 30.0) internal successors, (270), 9 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:34,041 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 41 predicate places. [2021-08-12 22:24:34,041 INFO L482 AbstractCegarLoop]: Abstraction has has 76 places, 109 transitions, 1580 flow [2021-08-12 22:24:34,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:34,042 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:34,042 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:34,042 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-12 22:24:34,043 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:34,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:34,043 INFO L82 PathProgramCache]: Analyzing trace with hash 949219561, now seen corresponding path program 9 times [2021-08-12 22:24:34,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:34,043 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132868580] [2021-08-12 22:24:34,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:34,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:34,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 22:24:34,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:34,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:34,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:34,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132868580] [2021-08-12 22:24:34,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132868580] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:34,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:34,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-12 22:24:34,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687362473] [2021-08-12 22:24:34,091 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 22:24:34,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:34,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 22:24:34,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-12 22:24:34,093 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 30 [2021-08-12 22:24:34,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 109 transitions, 1580 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:34,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:34,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 30 [2021-08-12 22:24:34,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:34,210 INFO L129 PetriNetUnfolder]: 132/461 cut-off events. [2021-08-12 22:24:34,211 INFO L130 PetriNetUnfolder]: For 3498/3605 co-relation queries the response was YES. [2021-08-12 22:24:34,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2920 conditions, 461 events. 132/461 cut-off events. For 3498/3605 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3050 event pairs, 39 based on Foata normal form. 14/469 useless extension candidates. Maximal degree in co-relation 2879. Up to 218 conditions per place. [2021-08-12 22:24:34,213 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 18 selfloop transitions, 21 changer transitions 75/131 dead transitions. [2021-08-12 22:24:34,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 131 transitions, 2170 flow [2021-08-12 22:24:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-12 22:24:34,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-12 22:24:34,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2021-08-12 22:24:34,214 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8444444444444444 [2021-08-12 22:24:34,214 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 152 transitions. [2021-08-12 22:24:34,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 152 transitions. [2021-08-12 22:24:34,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:34,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 152 transitions. [2021-08-12 22:24:34,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:34,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:34,215 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:34,216 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 46 predicate places. [2021-08-12 22:24:34,216 INFO L482 AbstractCegarLoop]: Abstraction has has 81 places, 131 transitions, 2170 flow [2021-08-12 22:24:34,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:34,216 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:34,216 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:34,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-12 22:24:34,216 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:34,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:34,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1371753371, now seen corresponding path program 10 times [2021-08-12 22:24:34,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:34,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681504725] [2021-08-12 22:24:34,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:34,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:34,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 22:24:34,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:34,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:34,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:34,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681504725] [2021-08-12 22:24:34,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681504725] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:34,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:34,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-12 22:24:34,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899820422] [2021-08-12 22:24:34,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 22:24:34,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:34,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 22:24:34,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-12 22:24:34,262 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 30 [2021-08-12 22:24:34,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 131 transitions, 2170 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:34,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:34,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 30 [2021-08-12 22:24:34,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:34,354 INFO L129 PetriNetUnfolder]: 124/446 cut-off events. [2021-08-12 22:24:34,354 INFO L130 PetriNetUnfolder]: For 4091/4139 co-relation queries the response was YES. [2021-08-12 22:24:34,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3112 conditions, 446 events. 124/446 cut-off events. For 4091/4139 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2909 event pairs, 37 based on Foata normal form. 16/460 useless extension candidates. Maximal degree in co-relation 3069. Up to 211 conditions per place. [2021-08-12 22:24:34,356 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 15 selfloop transitions, 16 changer transitions 87/134 dead transitions. [2021-08-12 22:24:34,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 134 transitions, 2472 flow [2021-08-12 22:24:34,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-12 22:24:34,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-12 22:24:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2021-08-12 22:24:34,357 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8444444444444444 [2021-08-12 22:24:34,357 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 152 transitions. [2021-08-12 22:24:34,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 152 transitions. [2021-08-12 22:24:34,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:34,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 152 transitions. [2021-08-12 22:24:34,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:34,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:34,358 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:34,358 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 51 predicate places. [2021-08-12 22:24:34,358 INFO L482 AbstractCegarLoop]: Abstraction has has 86 places, 134 transitions, 2472 flow [2021-08-12 22:24:34,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:34,358 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:34,358 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:34,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-12 22:24:34,359 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:34,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:34,360 INFO L82 PathProgramCache]: Analyzing trace with hash 490266925, now seen corresponding path program 11 times [2021-08-12 22:24:34,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:34,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151331352] [2021-08-12 22:24:34,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:34,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:34,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:34,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:34,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:34,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151331352] [2021-08-12 22:24:34,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151331352] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:34,410 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:34,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 22:24:34,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852436610] [2021-08-12 22:24:34,411 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 22:24:34,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:34,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 22:24:34,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-12 22:24:34,412 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 30 [2021-08-12 22:24:34,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 134 transitions, 2472 flow. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:34,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:34,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 30 [2021-08-12 22:24:34,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:34,524 INFO L129 PetriNetUnfolder]: 97/373 cut-off events. [2021-08-12 22:24:34,524 INFO L130 PetriNetUnfolder]: For 4346/4427 co-relation queries the response was YES. [2021-08-12 22:24:34,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2893 conditions, 373 events. 97/373 cut-off events. For 4346/4427 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2378 event pairs, 31 based on Foata normal form. 14/385 useless extension candidates. Maximal degree in co-relation 2848. Up to 172 conditions per place. [2021-08-12 22:24:34,526 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 10 selfloop transitions, 3 changer transitions 107/136 dead transitions. [2021-08-12 22:24:34,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 136 transitions, 2750 flow [2021-08-12 22:24:34,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-12 22:24:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-12 22:24:34,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 199 transitions. [2021-08-12 22:24:34,527 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8291666666666667 [2021-08-12 22:24:34,527 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 199 transitions. [2021-08-12 22:24:34,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 199 transitions. [2021-08-12 22:24:34,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:34,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 199 transitions. [2021-08-12 22:24:34,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 24.875) internal successors, (199), 8 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) [2021-08-12 22:24:34,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 30.0) internal successors, (270), 9 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:34,528 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 30.0) internal successors, (270), 9 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:34,528 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 58 predicate places. [2021-08-12 22:24:34,528 INFO L482 AbstractCegarLoop]: Abstraction has has 93 places, 136 transitions, 2750 flow [2021-08-12 22:24:34,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:34,528 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 22:24:34,528 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 22:24:34,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-12 22:24:34,529 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 22:24:34,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 22:24:34,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1418480251, now seen corresponding path program 12 times [2021-08-12 22:24:34,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 22:24:34,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043139481] [2021-08-12 22:24:34,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 22:24:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 22:24:34,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 22:24:34,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 22:24:34,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-12 22:24:34,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 22:24:34,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 22:24:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 22:24:34,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 22:24:34,560 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043139481] [2021-08-12 22:24:34,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043139481] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 22:24:34,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 22:24:34,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-12 22:24:34,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795353055] [2021-08-12 22:24:34,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 22:24:34,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 22:24:34,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 22:24:34,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-12 22:24:34,562 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 30 [2021-08-12 22:24:34,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 136 transitions, 2750 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:34,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 22:24:34,563 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 30 [2021-08-12 22:24:34,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 22:24:34,649 INFO L129 PetriNetUnfolder]: 84/333 cut-off events. [2021-08-12 22:24:34,650 INFO L130 PetriNetUnfolder]: For 4744/4770 co-relation queries the response was YES. [2021-08-12 22:24:34,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2849 conditions, 333 events. 84/333 cut-off events. For 4744/4770 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2131 event pairs, 25 based on Foata normal form. 10/342 useless extension candidates. Maximal degree in co-relation 2807. Up to 152 conditions per place. [2021-08-12 22:24:34,651 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 0 selfloop transitions, 0 changer transitions 136/136 dead transitions. [2021-08-12 22:24:34,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 136 transitions, 3070 flow [2021-08-12 22:24:34,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-12 22:24:34,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-12 22:24:34,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2021-08-12 22:24:34,652 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8444444444444444 [2021-08-12 22:24:34,652 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 152 transitions. [2021-08-12 22:24:34,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 152 transitions. [2021-08-12 22:24:34,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 22:24:34,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 152 transitions. [2021-08-12 22:24:34,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 22:24:34,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:34,653 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 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) [2021-08-12 22:24:34,653 INFO L348 CegarLoopForPetriNet]: 35 programPoint places, 61 predicate places. [2021-08-12 22:24:34,653 INFO L482 AbstractCegarLoop]: Abstraction has has 96 places, 136 transitions, 3070 flow [2021-08-12 22:24:34,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 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) [2021-08-12 22:24:34,653 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-12 22:24:34,780 INFO L742 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 19207 in 122505611ns [2021-08-12 22:24:34,783 INFO L113 kiGriesValidityCheck]: 10#false [2021-08-12 22:24:34,784 INFO L113 kiGriesValidityCheck]: 22#(or (and (not v_np25_1) (<= s t) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (<= (+ s 1) t) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 (not v_np1_1) (not v_np11_1) (not v_np14_1) v_np33_1 (not v_np6_1) (not v_np34_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) v_np17_1 (= x 0) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) v_np5_1 (not v_np28_1) (not v_np0_1) v_np21_1 (not b)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np11_1 v_np34_1 (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) v_np18_1 (not v_np16_1) (not v_np15_1) (or (and (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (<= s t) (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b))) (not v_np2_1) (not v_np17_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (or (and (<= (+ s 1) m1) (<= (+ s 2) m1) (= x 0) (<= (+ s 1) m2) (<= (+ s 1) t) (<= (+ s 2) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 1) m2) (<= (+ s 2) m2) (<= (+ s 1) t) (<= (+ s 2) t) (not b))) (not v_np5_1) (not v_np7_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) v_np12_1 (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np18_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) v_np3_1 (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) v_np26_1 (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (or (and (<= (+ s 1) m3) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (<= (+ s 2) t) (not b))) (not v_np16_1) (not v_np15_1) (not v_np2_1) v_np14_1 (not v_np17_1) (not v_np18_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) v_np18_1 (not v_np16_1) (not v_np15_1) (not v_np2_1) v_np14_1 (not v_np17_1) (or (and (<= s t) (= x 0) (<= (+ s 1) t) (not b)) (and (= x 0) (<= (+ s 1) t) (not b))) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) v_np27_1 (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) v_np18_1 (not v_np16_1) (not v_np15_1) (or (and (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (<= s t) (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b))) (not v_np2_1) (not v_np17_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 (not v_np1_1) (not v_np11_1) (not v_np14_1) v_np33_1 (not v_np6_1) (not v_np34_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) v_np17_1 (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (or (and (= x 0) (<= (+ s 1) m2) (<= (+ s 1) t) (<= (+ s 2) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (<= (+ s 2) t) (not b))) v_np3_1 (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) v_np27_1 (not v_np5_1) (<= (+ s 1) t) (not v_np7_1) (not v_np3_1) (not v_np9_1) (not v_np8_1) v_np32_1 (not v_np1_1) (not v_np11_1) (not v_np14_1) v_np33_1 (not v_np6_1) (not v_np34_1) (<= (+ s 2) t) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (<= (+ s 1) m1) v_np17_1 (= x 0) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np28_1) (not v_np0_1) v_np21_1 (not b)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (or (and (<= (+ s 1) m1) (<= (+ s 2) m1) (= x 0) (<= (+ s 1) m2) (<= (+ s 1) t) (<= (+ s 2) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 1) m2) (<= (+ s 2) m2) (<= (+ s 1) t) (<= (+ s 2) t) (not b))) (not v_np5_1) (not v_np7_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) v_np19_1 (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np18_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) v_np3_1 (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) v_np26_1 v_np27_1 (or (and (<= (+ s 1) m3) (<= (+ s 1) m1) (<= (+ s 2) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m3) (<= (+ s 1) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (<= (+ s 2) m3) (not b))) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np18_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 (not v_np1_1) (not v_np11_1) (not v_np14_1) v_np33_1 (not v_np6_1) (not v_np34_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np2_1) v_np15_1 v_np17_1 (not v_np18_1) (or (and (<= s t) (= x 0) (<= (+ s 1) t) (not b)) (and (= x 0) (<= (+ s 1) t) (not b))) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (<= (+ s 1) t) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) v_np12_1 (not v_np6_1) (<= (+ s 2) t) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) v_np14_1 (not v_np17_1) (<= (+ s 1) m1) (= x 0) (not v_np18_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1 (not b)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) v_np19_1 (or (and (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (<= s t) (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b))) (not v_np2_1) (not v_np17_1) v_np15_1 (not v_np18_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) v_np12_1 (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (or (and (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (<= s t) (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b))) (not v_np2_1) (not v_np17_1) v_np15_1 (not v_np18_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) v_np26_1 (or (and (<= (+ s 1) m3) (<= (+ s 1) m1) (<= (+ s 2) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m3) (<= (+ s 1) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (<= (+ s 2) m3) (not b))) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np11_1 v_np34_1 (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np18_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np27_1) (not v_np9_1) (or (and (<= s t) (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b)) (and (<= s t) (= x 0) (<= (+ s 1) m2) (<= (+ s 1) t) (not b))) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np18_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) v_np3_1 (not v_np28_1) (not v_np0_1) v_np21_1 v_np23_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) v_np26_1 (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np18_1) (or (and (<= s t) (<= (+ s 1) m3) (= x 0) (<= (+ s 1) t) (not b)) (and (<= s t) (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b))) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np33_1) v_np5_1 (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) v_np26_1 (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (or (and (<= (+ s 1) m3) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (<= s t) (<= (+ s 1) m3) (= x 0) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m3) (= x 0) (<= (+ s 1) t) (not b)) (and (<= s t) (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b))) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np2_1) (not v_np17_1) v_np15_1 (not v_np18_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (or (and (= x 0) (<= (+ s 1) m2) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (= x 0) (<= (+ s 1) m2) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (<= s t) (<= (+ s 1) m1) (= x 0) (<= (+ s 1) t) (not b)) (and (<= s t) (= x 0) (<= (+ s 1) m2) (<= (+ s 1) t) (not b))) (not v_np5_1) (not v_np7_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) v_np18_1 (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) v_np3_1 (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) v_np26_1 (not v_np5_1) (not v_np7_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np18_1) (not v_np19_1) (not v_np29_1) (or (and (<= (+ s 1) m1) (<= (+ s 2) m1) (= x 0) (<= (+ s 1) m2) (<= (+ s 1) t) (<= (+ s 2) t) (not b)) (and (<= (+ s 1) m3) (<= (+ s 1) m1) (<= (+ s 2) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (not b)) (and (<= (+ s 1) m3) (<= (+ s 1) m1) (= x 0) (<= (+ s 2) t) (<= (+ s 1) t) (<= (+ s 2) m3) (not b)) (and (<= (+ s 1) m1) (= x 0) (<= (+ s 1) m2) (<= (+ s 2) m2) (<= (+ s 1) t) (<= (+ s 2) t) (not b)) (and (<= (+ s 1) m3) (= x 0) (<= (+ s 1) m2) (<= (+ s 1) t) (<= (+ s 2) t) (<= (+ s 2) m3) (not b)) (and (<= (+ s 1) m3) (= x 0) (<= (+ s 1) m2) (<= (+ s 2) m2) (<= (+ s 1) t) (<= (+ s 2) t) (not b))) v_np1_1 (not v_np33_1) v_np3_1 (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np20_1) (not v_np32_1) (not v_np5_1) (<= (+ s 1) t) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) v_np33_1 v_np13_1 (not v_np6_1) (not v_np34_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) v_np31_1 (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (= x 0) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np28_1) (not v_np0_1) v_np21_1 (not b)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (or (and (<= s t) (= x 0) (<= (+ s 1) t) (not b)) (and (= x 0) (not b))) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) v_np18_1 (not v_np16_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) v_np5_1 (not v_np28_1) (not v_np0_1) v_np21_1) (and (not v_np25_1) (<= s t) (not v_np22_1) (not v_np31_1) (not v_np20_1) (<= (+ s 1) t) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) v_np14_1 (not v_np17_1) (= x 0) (not v_np18_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1 v_np23_1 (not b)) (and (not v_np25_1) (<= s t) (not v_np22_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np2_1) (not v_np17_1) v_np15_1 (= x 0) (not v_np18_1) (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1 v_np23_1 (not b)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (<= (+ s 1) t) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np6_1) (<= (+ s 2) t) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) v_np19_1 (not v_np15_1) (not v_np2_1) v_np14_1 (not v_np17_1) (<= (+ s 1) m1) (= x 0) (not v_np18_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1 (not b)) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np34_1 (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) v_np18_1 (not v_np16_1) (not v_np2_1) (not v_np17_1) v_np15_1 (not v_np19_1) (not v_np29_1) v_np1_1 (not v_np26_1) (not v_np33_1) (not v_np28_1) (not v_np0_1) v_np21_1 (or (and (<= s t) (= x 0) (<= (+ s 1) t) (not b)) (and (= x 0) (<= (+ s 1) t) (not b)) (and (= x 0) (not b)) (and (<= s t) (= x 0) (not b)))) (and (not v_np25_1) (not v_np22_1) (not v_np23_1) (not v_np31_1) (not v_np20_1) (not v_np5_1) (<= (+ s 1) t) (not v_np7_1) (not v_np3_1) (not v_np27_1) (not v_np9_1) (not v_np8_1) v_np32_1 v_np11_1 (not v_np1_1) (not v_np14_1) v_np33_1 (not v_np6_1) (not v_np34_1) (<= (+ s 2) t) (not v_np24_1) v_np30_1 (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) (<= (+ s 1) m1) v_np17_1 (= x 0) (not v_np18_1) (not v_np19_1) (not v_np29_1) (not v_np26_1) (not v_np28_1) (not v_np0_1) v_np21_1 (not b))) [2021-08-12 22:24:34,810 INFO L748 CegarLoopForPetriNet]: Checked inductivity and non-interference of Owicki-Gries annotation in 33579340ns [2021-08-12 22:24:34,810 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Invalid Owicki-Gries annotation at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:230) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-12 22:24:34,812 INFO L168 Benchmark]: Toolchain (without parser) took 2782.07 ms. Allocated memory was 224.4 MB in the beginning and 296.7 MB in the end (delta: 72.4 MB). Free memory was 206.1 MB in the beginning and 209.2 MB in the end (delta: -3.1 MB). Peak memory consumption was 70.7 MB. Max. memory is 8.0 GB. [2021-08-12 22:24:34,812 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.68 ms. Allocated memory is still 224.4 MB. Free memory was 207.2 MB in the beginning and 207.1 MB in the end (delta: 85.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 22:24:34,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.47 ms. Allocated memory is still 224.4 MB. Free memory was 205.9 MB in the beginning and 204.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-12 22:24:34,812 INFO L168 Benchmark]: Boogie Preprocessor took 11.25 ms. Allocated memory is still 224.4 MB. Free memory was 204.5 MB in the beginning and 203.7 MB in the end (delta: 836.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-12 22:24:34,813 INFO L168 Benchmark]: RCFGBuilder took 221.26 ms. Allocated memory is still 224.4 MB. Free memory was 203.7 MB in the beginning and 190.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-12 22:24:34,813 INFO L168 Benchmark]: TraceAbstraction took 2526.60 ms. Allocated memory was 224.4 MB in the beginning and 296.7 MB in the end (delta: 72.4 MB). Free memory was 190.4 MB in the beginning and 209.2 MB in the end (delta: -18.8 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB. [2021-08-12 22:24:34,814 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 0.68 ms. Allocated memory is still 224.4 MB. Free memory was 207.2 MB in the beginning and 207.1 MB in the end (delta: 85.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 18.47 ms. Allocated memory is still 224.4 MB. Free memory was 205.9 MB in the beginning and 204.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.25 ms. Allocated memory is still 224.4 MB. Free memory was 204.5 MB in the beginning and 203.7 MB in the end (delta: 836.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 221.26 ms. Allocated memory is still 224.4 MB. Free memory was 203.7 MB in the beginning and 190.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2526.60 ms. Allocated memory was 224.4 MB in the beginning and 296.7 MB in the end (delta: 72.4 MB). Free memory was 190.4 MB in the beginning and 209.2 MB in the end (delta: -18.8 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Invalid Owicki-Gries annotation de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Invalid Owicki-Gries annotation: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...