/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/Peterson.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 12:47:58,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 12:47:58,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 12:47:58,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 12:47:58,072 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-Hitting.epf [2021-08-13 12:47:58,087 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 12:47:58,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 12:47:58,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 12:47:58,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 12:47:58,089 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 12:47:58,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 12:47:58,089 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 12:47:58,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 12:47:58,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 12:47:58,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 12:47:58,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 12:47:58,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 12:47:58,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 12:47:58,090 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 12:47:58,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 12:47:58,090 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 12:47:58,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 12:47:58,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 12:47:58,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 12:47:58,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 12:47:58,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 12:47:58,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 12:47:58,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 12:47:58,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 12:47:58,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 12:47:58,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 12:47:58,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 12:47:58,091 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 12:47:58,091 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 12:47:58,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 12:47:58,091 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 12:47:58,091 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 12:47:58,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 12:47:58,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 12:47:58,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 12:47:58,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 12:47:58,347 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 12:47:58,350 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 12:47:58,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/Peterson.bpl [2021-08-13 12:47:58,351 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/Peterson.bpl' [2021-08-13 12:47:58,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 12:47:58,378 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 12:47:58,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 12:47:58,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 12:47:58,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 12:47:58,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:58" (1/1) ... [2021-08-13 12:47:58,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:58" (1/1) ... [2021-08-13 12:47:58,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 12:47:58,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 12:47:58,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 12:47:58,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 12:47:58,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:58" (1/1) ... [2021-08-13 12:47:58,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:58" (1/1) ... [2021-08-13 12:47:58,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:58" (1/1) ... [2021-08-13 12:47:58,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:58" (1/1) ... [2021-08-13 12:47:58,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:58" (1/1) ... [2021-08-13 12:47:58,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:58" (1/1) ... [2021-08-13 12:47:58,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:58" (1/1) ... [2021-08-13 12:47:58,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 12:47:58,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 12:47:58,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 12:47:58,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 12:47:58,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 12:47:58,484 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process0 given in one single declaration [2021-08-13 12:47:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure Process0 [2021-08-13 12:47:58,485 INFO L138 BoogieDeclarations]: Found implementation of procedure Process0 [2021-08-13 12:47:58,485 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration [2021-08-13 12:47:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure Process1 [2021-08-13 12:47:58,485 INFO L138 BoogieDeclarations]: Found implementation of procedure Process1 [2021-08-13 12:47:58,485 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 12:47:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 12:47:58,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 12:47:58,486 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 12:47:58,609 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 12:47:58,609 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-08-13 12:47:58,610 INFO L202 PluginConnector]: Adding new model Peterson.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:47:58 BoogieIcfgContainer [2021-08-13 12:47:58,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 12:47:58,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 12:47:58,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 12:47:58,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 12:47:58,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Peterson.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:47:58" (1/2) ... [2021-08-13 12:47:58,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c07a252 and model type Peterson.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:47:58, skipping insertion in model container [2021-08-13 12:47:58,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Peterson.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:47:58" (2/2) ... [2021-08-13 12:47:58,616 INFO L111 eAbstractionObserver]: Analyzing ICFG Peterson.bpl [2021-08-13 12:47:58,624 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 12:47:58,625 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-13 12:47:58,626 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 12:47:58,652 WARN L313 ript$VariableManager]: TermVariabe Process0Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:47:58,652 WARN L313 ript$VariableManager]: TermVariabe Process0Thread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:47:58,657 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:47:58,657 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:47:58,658 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 12:47:58,673 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-13 12:47:58,687 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 12:47:58,688 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 12:47:58,688 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 12:47:58,688 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 12:47:58,688 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 12:47:58,688 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 12:47:58,688 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 12:47:58,688 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 12:47:58,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 26 transitions, 62 flow [2021-08-13 12:47:58,709 INFO L129 PetriNetUnfolder]: 2/24 cut-off events. [2021-08-13 12:47:58,710 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 12:47:58,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 24 events. 2/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-08-13 12:47:58,712 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 26 transitions, 62 flow [2021-08-13 12:47:58,715 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 24 transitions, 54 flow [2021-08-13 12:47:58,719 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-08-13 12:47:58,719 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 12:47:58,719 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:47:58,720 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-13 12:47:58,720 INFO L430 AbstractCegarLoop]: === Iteration 1 === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-08-13 12:47:58,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:47:58,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1933706754, now seen corresponding path program 1 times [2021-08-13 12:47:58,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:47:58,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638043958] [2021-08-13 12:47:58,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:47:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:47:58,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:58,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:47:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:47:58,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:47:58,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638043958] [2021-08-13 12:47:58,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638043958] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:47:58,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:47:58,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-13 12:47:58,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243192106] [2021-08-13 12:47:58,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:47:58,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:47:58,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:47:58,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:47:58,854 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 26 [2021-08-13 12:47:58,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:58,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:47:58,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 26 [2021-08-13 12:47:58,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:47:58,907 INFO L129 PetriNetUnfolder]: 22/81 cut-off events. [2021-08-13 12:47:58,907 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 12:47:58,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 81 events. 22/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 229 event pairs, 4 based on Foata normal form. 15/93 useless extension candidates. Maximal degree in co-relation 125. Up to 30 conditions per place. [2021-08-13 12:47:58,910 INFO L132 encePairwiseOnDemand]: 15/26 looper letters, 8 selfloop transitions, 7 changer transitions 0/26 dead transitions. [2021-08-13 12:47:58,910 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 88 flow [2021-08-13 12:47:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:47:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:47:58,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2021-08-13 12:47:58,938 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2021-08-13 12:47:58,938 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 66 transitions. [2021-08-13 12:47:58,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 66 transitions. [2021-08-13 12:47:58,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:47:58,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 66 transitions. [2021-08-13 12:47:58,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:58,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:58,961 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:58,963 INFO L348 CegarLoopForPetriNet]: 29 programPoint places, -2 predicate places. [2021-08-13 12:47:58,963 INFO L482 AbstractCegarLoop]: Abstraction has has 27 places, 26 transitions, 88 flow [2021-08-13 12:47:58,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:58,963 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:47:58,963 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:47:58,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 12:47:58,969 INFO L430 AbstractCegarLoop]: === Iteration 2 === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-08-13 12:47:58,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:47:58,970 INFO L82 PathProgramCache]: Analyzing trace with hash -968737348, now seen corresponding path program 1 times [2021-08-13 12:47:58,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:47:58,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417302838] [2021-08-13 12:47:58,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:47:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:47:58,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:58,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:47:58,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:58,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:47:59,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:59,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:47:59,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:59,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:47:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:47:59,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:47:59,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417302838] [2021-08-13 12:47:59,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417302838] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:47:59,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:47:59,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 12:47:59,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043222066] [2021-08-13 12:47:59,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 12:47:59,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:47:59,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 12:47:59,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-13 12:47:59,029 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 26 [2021-08-13 12:47:59,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 26 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:59,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:47:59,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 26 [2021-08-13 12:47:59,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:47:59,067 INFO L129 PetriNetUnfolder]: 28/96 cut-off events. [2021-08-13 12:47:59,068 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 12:47:59,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 96 events. 28/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 293 event pairs, 7 based on Foata normal form. 5/97 useless extension candidates. Maximal degree in co-relation 180. Up to 31 conditions per place. [2021-08-13 12:47:59,069 INFO L132 encePairwiseOnDemand]: 21/26 looper letters, 6 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2021-08-13 12:47:59,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 120 flow [2021-08-13 12:47:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-13 12:47:59,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-08-13 12:47:59,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2021-08-13 12:47:59,071 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8076923076923077 [2021-08-13 12:47:59,071 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 84 transitions. [2021-08-13 12:47:59,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 84 transitions. [2021-08-13 12:47:59,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:47:59,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 84 transitions. [2021-08-13 12:47:59,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:59,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:59,073 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:59,073 INFO L348 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2021-08-13 12:47:59,073 INFO L482 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 120 flow [2021-08-13 12:47:59,073 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:59,073 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:47:59,074 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:47:59,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 12:47:59,074 INFO L430 AbstractCegarLoop]: === Iteration 3 === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-08-13 12:47:59,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:47:59,074 INFO L82 PathProgramCache]: Analyzing trace with hash -533317838, now seen corresponding path program 2 times [2021-08-13 12:47:59,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:47:59,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946095962] [2021-08-13 12:47:59,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:47:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:47:59,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:59,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:47:59,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:59,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:47:59,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:59,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:47:59,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:47:59,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:47:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:47:59,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:47:59,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946095962] [2021-08-13 12:47:59,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946095962] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:47:59,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:47:59,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 12:47:59,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561267360] [2021-08-13 12:47:59,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 12:47:59,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:47:59,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 12:47:59,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-13 12:47:59,100 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 26 [2021-08-13 12:47:59,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:59,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:47:59,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 26 [2021-08-13 12:47:59,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:47:59,143 INFO L129 PetriNetUnfolder]: 12/43 cut-off events. [2021-08-13 12:47:59,144 INFO L130 PetriNetUnfolder]: For 4/5 co-relation queries the response was YES. [2021-08-13 12:47:59,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 43 events. 12/43 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 95 event pairs, 0 based on Foata normal form. 4/47 useless extension candidates. Maximal degree in co-relation 99. Up to 14 conditions per place. [2021-08-13 12:47:59,144 INFO L132 encePairwiseOnDemand]: 21/26 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2021-08-13 12:47:59,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 136 flow [2021-08-13 12:47:59,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-13 12:47:59,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-08-13 12:47:59,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2021-08-13 12:47:59,145 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8076923076923077 [2021-08-13 12:47:59,145 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 84 transitions. [2021-08-13 12:47:59,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 84 transitions. [2021-08-13 12:47:59,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:47:59,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 84 transitions. [2021-08-13 12:47:59,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:59,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:59,147 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:59,147 INFO L348 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2021-08-13 12:47:59,147 INFO L482 AbstractCegarLoop]: Abstraction has has 31 places, 28 transitions, 136 flow [2021-08-13 12:47:59,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:47:59,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 12:48:00,279 INFO L742 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 7742 in 1128026661ns [2021-08-13 12:48:00,282 INFO L113 kiGriesValidityCheck]: 23#(and (not v_np16_1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (not v_np5_1) (not v_np3_1) (not v_np8_1) v_np22_1 (not v_np1_1) (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1)) [2021-08-13 12:48:00,285 INFO L113 kiGriesValidityCheck]: 14#(or (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (<= 1 flag0) (not v_np3_1) v_np5_1 (not v_np8_1) (not v_np1_1) v_np12_1 v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (<= 1 flag0) (not v_np5_1) v_np3_1 v_np8_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) (not v_np5_1) (not v_np3_1) v_np6_1 v_np8_1 (not v_np1_1) v_np13_1 (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np20_1) (not v_np21_1) (= 0 critical) v_np17_1 (<= 1 flag0) (not v_np5_1) (not v_np3_1) v_np8_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np21_1) (<= 1 flag0) (not v_np5_1) (not v_np3_1) (not v_np8_1) (not v_np1_1) v_np12_1 v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (<= 1 turn) v_np20_1 (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) (not v_np3_1) v_np5_1 v_np8_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (not v_np5_1) v_np1_1 (not v_np3_1) (not v_np8_1) v_np10_1 v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (<= 1 flag0) (not v_np5_1) v_np3_1 (not v_np8_1) v_np21_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (<= turn 0) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) (not v_np5_1) (not v_np3_1) v_np4_1 (not v_np8_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np12_1) (<= 1 turn) v_np20_1 (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (= 0 critical) (<= 1 flag0) (not v_np3_1) v_np5_1 (not v_np8_1) v_np21_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (<= 1 flag0) (not v_np5_1) v_np2_1 v_np3_1 (not v_np8_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (not v_np5_1) (not v_np3_1) v_np4_1 (not v_np8_1) v_np10_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np12_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (not v_np5_1) (not v_np3_1) (not v_np8_1) v_np10_1 (not v_np1_1) v_np13_1 v_np24_1 (not v_np6_1) (not v_np4_1) (not v_np12_1)) (and (not v_np16_1) (not v_np22_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) v_np2_1 (not v_np3_1) v_np5_1 (not v_np8_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (not v_np5_1) v_np2_1 (not v_np3_1) (not v_np8_1) v_np10_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (= 0 critical) (<= 1 flag0) (not v_np5_1) (not v_np3_1) (not v_np8_1) v_np21_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (<= turn 0) (not v_np4_1) (not v_np12_1) v_np20_1 (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (not v_np17_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) (not v_np5_1) v_np2_1 (not v_np3_1) (not v_np8_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) v_np20_1 (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) (not v_np5_1) (not v_np3_1) (not v_np8_1) (not v_np1_1) v_np13_1 v_np24_1 (not v_np6_1) (not v_np4_1) (not v_np12_1) (<= 1 turn) v_np20_1 (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (not v_np20_1) (not v_np21_1) (= 0 critical) v_np17_1 (<= 1 flag0) (not v_np5_1) v_np2_1 (not v_np3_1) (not v_np8_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (not v_np5_1) (not v_np3_1) v_np8_1 v_np10_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np20_1) (= 0 critical) v_np17_1 (<= 1 flag0) (not v_np5_1) (not v_np3_1) (not v_np8_1) v_np21_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (<= turn 0) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (not v_np5_1) (not v_np3_1) (not v_np8_1) v_np10_1 (not v_np1_1) v_np12_1 v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (= 0 critical) (not v_np5_1) (not v_np3_1) (not v_np8_1) v_np21_1 v_np10_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1)) (and (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) v_np16_1 (= 0 critical) (<= 1 flag0) (not v_np5_1) (not v_np3_1) v_np8_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) (not v_np3_1) v_np5_1 (not v_np8_1) (not v_np1_1) v_np13_1 v_np24_1 (not v_np6_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) (not v_np5_1) v_np2_1 (not v_np3_1) v_np6_1 (not v_np8_1) (not v_np1_1) v_np13_1 (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) (not v_np5_1) v_np1_1 (not v_np3_1) (not v_np8_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (<= 1 turn) v_np20_1 (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) (not v_np3_1) v_np4_1 v_np5_1 (not v_np8_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np12_1) (not v_np10_1)) (and (not v_np22_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) v_np16_1 (= 0 critical) (<= 1 flag0) (not v_np5_1) v_np2_1 (not v_np3_1) (not v_np8_1) (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (= 0 critical) (<= 1 flag0) (not v_np5_1) (not v_np3_1) v_np6_1 (not v_np8_1) v_np21_1 (not v_np1_1) v_np13_1 (not v_np24_1) (<= turn 0) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) v_np16_1 (= 0 critical) (<= 1 flag0) (not v_np5_1) (not v_np3_1) (not v_np8_1) v_np21_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (<= turn 0) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np20_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) v_np1_1 (not v_np3_1) v_np5_1 (not v_np8_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) (not v_np10_1)) (and (not v_np16_1) (not v_np22_1) (<= 1 flag1) (not v_np2_1) (not v_np17_1) (not v_np21_1) (= 0 critical) (<= 1 flag0) (not v_np5_1) (not v_np3_1) v_np8_1 (not v_np1_1) v_np13_1 (not v_np6_1) (not v_np24_1) (not v_np4_1) (not v_np12_1) v_np20_1 (not v_np10_1))) [2021-08-13 12:48:00,308 INFO L748 CegarLoopForPetriNet]: Checked inductivity and non-interference of Owicki-Gries annotation in 32238463ns [2021-08-13 12:48:00,309 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) [2021-08-13 12:48:00,311 INFO L168 Benchmark]: Toolchain (without parser) took 1933.06 ms. Allocated memory was 178.3 MB in the beginning and 256.9 MB in the end (delta: 78.6 MB). Free memory was 160.4 MB in the beginning and 196.5 MB in the end (delta: -36.1 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2021-08-13 12:48:00,312 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 178.3 MB. Free memory is still 161.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 12:48:00,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.02 ms. Allocated memory is still 178.3 MB. Free memory was 160.3 MB in the beginning and 158.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 12:48:00,312 INFO L168 Benchmark]: Boogie Preprocessor took 14.47 ms. Allocated memory is still 178.3 MB. Free memory was 158.9 MB in the beginning and 157.9 MB in the end (delta: 922.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 12:48:00,313 INFO L168 Benchmark]: RCFGBuilder took 188.18 ms. Allocated memory is still 178.3 MB. Free memory was 157.8 MB in the beginning and 148.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-08-13 12:48:00,313 INFO L168 Benchmark]: TraceAbstraction took 1698.30 ms. Allocated memory was 178.3 MB in the beginning and 256.9 MB in the end (delta: 78.6 MB). Free memory was 147.6 MB in the beginning and 196.5 MB in the end (delta: -49.0 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2021-08-13 12:48:00,315 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 0.11 ms. Allocated memory is still 178.3 MB. Free memory is still 161.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 21.02 ms. Allocated memory is still 178.3 MB. Free memory was 160.3 MB in the beginning and 158.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.47 ms. Allocated memory is still 178.3 MB. Free memory was 158.9 MB in the beginning and 157.9 MB in the end (delta: 922.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 188.18 ms. Allocated memory is still 178.3 MB. Free memory was 157.8 MB in the beginning and 148.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1698.30 ms. Allocated memory was 178.3 MB in the beginning and 256.9 MB in the end (delta: 78.6 MB). Free memory was 147.6 MB in the beginning and 196.5 MB in the end (delta: -49.0 MB). Peak memory consumption was 30.4 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...