/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy8.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 19:34:08,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 19:34:08,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 19:34:08,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 19:34:08,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 19:34:08,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 19:34:08,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 19:34:08,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 19:34:08,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 19:34:08,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 19:34:08,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 19:34:08,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 19:34:08,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 19:34:08,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 19:34:08,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 19:34:08,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 19:34:08,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 19:34:08,300 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl-Hitting.epf [2021-08-13 19:34:08,327 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 19:34:08,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 19:34:08,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 19:34:08,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 19:34:08,329 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 19:34:08,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 19:34:08,330 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 19:34:08,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 19:34:08,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 19:34:08,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 19:34:08,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 19:34:08,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 19:34:08,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 19:34:08,331 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 19:34:08,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 19:34:08,331 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 19:34:08,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 19:34:08,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 19:34:08,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 19:34:08,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 19:34:08,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 19:34:08,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 19:34:08,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 19:34:08,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 19:34:08,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 19:34:08,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 19:34:08,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 19:34:08,333 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 19:34:08,333 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 19:34:08,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 19:34:08,333 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 19:34:08,333 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 19:34:08,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 19:34:08,334 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 19:34:08,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 19:34:08,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 19:34:08,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 19:34:08,593 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 19:34:08,594 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 19:34:08,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy8.wvr.bpl [2021-08-13 19:34:08,595 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy8.wvr.bpl' [2021-08-13 19:34:08,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 19:34:08,608 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 19:34:08,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 19:34:08,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 19:34:08,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 19:34:08,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:34:08" (1/1) ... [2021-08-13 19:34:08,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:34:08" (1/1) ... [2021-08-13 19:34:08,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 19:34:08,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 19:34:08,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 19:34:08,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 19:34:08,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:34:08" (1/1) ... [2021-08-13 19:34:08,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:34:08" (1/1) ... [2021-08-13 19:34:08,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:34:08" (1/1) ... [2021-08-13 19:34:08,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:34:08" (1/1) ... [2021-08-13 19:34:08,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:34:08" (1/1) ... [2021-08-13 19:34:08,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:34:08" (1/1) ... [2021-08-13 19:34:08,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:34:08" (1/1) ... [2021-08-13 19:34:08,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 19:34:08,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 19:34:08,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 19:34:08,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 19:34:08,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:34:08" (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 19:34:08,673 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-13 19:34:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-13 19:34:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-13 19:34:08,673 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-13 19:34:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-13 19:34:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-13 19:34:08,674 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 19:34:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 19:34:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 19:34:08,675 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 19:34:08,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 19:34:08,779 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-13 19:34:08,780 INFO L202 PluginConnector]: Adding new model easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:34:08 BoogieIcfgContainer [2021-08-13 19:34:08,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 19:34:08,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 19:34:08,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 19:34:08,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 19:34:08,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:34:08" (1/2) ... [2021-08-13 19:34:08,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd851 and model type easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 07:34:08, skipping insertion in model container [2021-08-13 19:34:08,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:34:08" (2/2) ... [2021-08-13 19:34:08,786 INFO L111 eAbstractionObserver]: Analyzing ICFG easy8.wvr.bpl [2021-08-13 19:34:08,793 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 19:34:08,793 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 19:34:08,794 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 19:34:08,842 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-13 19:34:08,857 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-13 19:34:08,878 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 19:34:08,879 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 19:34:08,879 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 19:34:08,879 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 19:34:08,879 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 19:34:08,879 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 19:34:08,879 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 19:34:08,879 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 19:34:08,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 14 transitions, 44 flow [2021-08-13 19:34:08,902 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-08-13 19:34:08,902 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-08-13 19:34:08,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 12 events. 0/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 19:34:08,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 14 transitions, 44 flow [2021-08-13 19:34:08,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 17 places, 10 transitions, 32 flow [2021-08-13 19:34:08,911 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-08-13 19:34:08,911 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-08-13 19:34:08,911 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 19:34:08,912 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 19:34:08,912 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 19:34:08,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 19:34:08,918 INFO L82 PathProgramCache]: Analyzing trace with hash 493693224, now seen corresponding path program 1 times [2021-08-13 19:34:08,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 19:34:08,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219794567] [2021-08-13 19:34:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 19:34:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 19:34:08,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 19:34:08,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 19:34:08,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 19:34:08,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 19:34:09,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 19:34:09,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 19:34:09,012 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 19:34:09,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 19:34:09,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219794567] [2021-08-13 19:34:09,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219794567] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 19:34:09,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 19:34:09,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 19:34:09,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773525211] [2021-08-13 19:34:09,020 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 19:34:09,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 19:34:09,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 19:34:09,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 19:34:09,030 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 14 [2021-08-13 19:34:09,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 10 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 19:34:09,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 19:34:09,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 14 [2021-08-13 19:34:09,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 19:34:09,066 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-08-13 19:34:09,066 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-08-13 19:34:09,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 12 events. 0/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 19:34:09,067 INFO L132 encePairwiseOnDemand]: 12/14 looper letters, 1 selfloop transitions, 1 changer transitions 0/10 dead transitions. [2021-08-13 19:34:09,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 10 transitions, 36 flow [2021-08-13 19:34:09,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 19:34:09,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 19:34:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2021-08-13 19:34:09,087 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-08-13 19:34:09,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 36 transitions. [2021-08-13 19:34:09,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 36 transitions. [2021-08-13 19:34:09,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 19:34:09,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 36 transitions. [2021-08-13 19:34:09,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 19:34:09,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 19:34:09,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 19:34:09,093 INFO L348 CegarLoopForPetriNet]: 17 programPoint places, 2 predicate places. [2021-08-13 19:34:09,093 INFO L482 AbstractCegarLoop]: Abstraction has has 19 places, 10 transitions, 36 flow [2021-08-13 19:34:09,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 19:34:09,093 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 19:34:09,093 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 19:34:09,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 19:34:09,094 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 19:34:09,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 19:34:09,094 INFO L82 PathProgramCache]: Analyzing trace with hash -242159738, now seen corresponding path program 2 times [2021-08-13 19:34:09,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 19:34:09,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076852400] [2021-08-13 19:34:09,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 19:34:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 19:34:09,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 19:34:09,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 19:34:09,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 19:34:09,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 19:34:09,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 19:34:09,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 19:34:09,123 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 19:34:09,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 19:34:09,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076852400] [2021-08-13 19:34:09,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076852400] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 19:34:09,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 19:34:09,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 19:34:09,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601278465] [2021-08-13 19:34:09,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 19:34:09,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 19:34:09,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 19:34:09,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 19:34:09,126 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 14 [2021-08-13 19:34:09,126 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 10 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 19:34:09,126 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 19:34:09,126 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 14 [2021-08-13 19:34:09,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 19:34:09,143 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-08-13 19:34:09,143 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-08-13 19:34:09,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 10 events. 0/10 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 19:34:09,144 INFO L132 encePairwiseOnDemand]: 12/14 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2021-08-13 19:34:09,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 8 transitions, 36 flow [2021-08-13 19:34:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 19:34:09,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 19:34:09,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2021-08-13 19:34:09,145 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2021-08-13 19:34:09,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 33 transitions. [2021-08-13 19:34:09,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 33 transitions. [2021-08-13 19:34:09,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 19:34:09,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 33 transitions. [2021-08-13 19:34:09,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 19:34:09,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 19:34:09,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 19:34:09,146 INFO L348 CegarLoopForPetriNet]: 17 programPoint places, 2 predicate places. [2021-08-13 19:34:09,147 INFO L482 AbstractCegarLoop]: Abstraction has has 19 places, 8 transitions, 36 flow [2021-08-13 19:34:09,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 19:34:09,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 19:34:09,247 INFO L742 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 1420 in 97257643ns [2021-08-13 19:34:09,250 INFO L113 kiGriesValidityCheck]: 13#(or (and (not v_np15_1) (not v_np2_1) (not v_np8_1) c b (not v_np1_1) v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) v_np7_1 (not v_np1_1) v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1) (not v_np7_1))) [2021-08-13 19:34:09,250 INFO L113 kiGriesValidityCheck]: 5#(or (and (not v_np15_1) (not v_np2_1) (not v_np8_1) c b (not v_np1_1) v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np2_1 (not v_np15_1) (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1))) [2021-08-13 19:34:09,253 INFO L113 kiGriesValidityCheck]: 17#(or (and (not v_np15_1) (not v_np2_1) (not v_np8_1) c b (not v_np1_1) v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) v_np7_1 (not v_np1_1) v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1)) (and (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np12_1) (not v_np13_1)) (and v_np1_1 v_np2_1 (not v_np15_1) (not v_np8_1) c b v_np10_1 (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np2_1 (not v_np15_1) (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) c b v_np10_1 (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1)) (and v_np2_1 (not v_np15_1) (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1) (not v_np7_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np10_1 (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1))) [2021-08-13 19:34:09,258 INFO L113 kiGriesValidityCheck]: 16#(or (and v_np2_1 v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1)) (and (not v_np2_1) v_np5_1 v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1)) (and (not v_np2_1) v_np15_1 v_np8_1 (not v_np1_1) v_np13_1 (not v_np5_1) (not v_np12_1) (not v_np10_1) (not v_np7_1)) (and (not v_np2_1) v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1)) (and (not v_np2_1) v_np15_1 (not v_np8_1) c b (not v_np1_1) v_np13_1 (not v_np5_1) (not v_np12_1) (not v_np10_1) (not v_np7_1))) [2021-08-13 19:34:09,258 INFO L113 kiGriesValidityCheck]: 10#(or (and v_np2_1 v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1)) (and (not v_np2_1) v_np5_1 v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1)) (and (not v_np2_1) v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1))) [2021-08-13 19:34:09,261 INFO L113 kiGriesValidityCheck]: 3#(or (and v_np2_1 v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1)) (and v_np1_1 v_np2_1 (not v_np15_1) (not v_np8_1) c b v_np10_1 (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np2_1 (not v_np15_1) (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1)) (and v_np2_1 (not v_np15_1) (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1))) [2021-08-13 19:34:09,262 INFO L113 kiGriesValidityCheck]: 12#(or (and (not v_np15_1) (not v_np2_1) (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np10_1 (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np2_1) v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1))) [2021-08-13 19:34:09,264 INFO L113 kiGriesValidityCheck]: 1#(and (not v_np2_1) v_np15_1 (not v_np8_1) c b (not v_np1_1) v_np13_1 (not v_np5_1) (not v_np12_1) (not v_np10_1) (not v_np7_1)) [2021-08-13 19:34:09,265 INFO L113 kiGriesValidityCheck]: 2#(or (and v_np1_1 v_np2_1 (not v_np15_1) (not v_np8_1) c b v_np10_1 (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) c b v_np10_1 (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1) (not v_np7_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np10_1 (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1))) [2021-08-13 19:34:09,266 INFO L113 kiGriesValidityCheck]: 4#false [2021-08-13 19:34:09,267 INFO L113 kiGriesValidityCheck]: 14#(or (and (not v_np15_1) (not v_np2_1) (not v_np8_1) c b (not v_np1_1) v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) v_np7_1 (not v_np1_1) v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1) (not v_np7_1)) (and (not v_np2_1) v_np15_1 v_np8_1 (not v_np1_1) v_np13_1 (not v_np5_1) (not v_np12_1) (not v_np10_1) (not v_np7_1)) (and (not v_np2_1) v_np15_1 (not v_np8_1) c b (not v_np1_1) v_np13_1 (not v_np5_1) (not v_np12_1) (not v_np10_1) (not v_np7_1))) [2021-08-13 19:34:09,267 INFO L113 kiGriesValidityCheck]: 9#(and (not v_np2_1) v_np15_1 v_np8_1 (not v_np1_1) v_np13_1 (not v_np5_1) (not v_np12_1) (not v_np10_1) (not v_np7_1)) [2021-08-13 19:34:09,269 INFO L113 kiGriesValidityCheck]: 11#(or (and (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np12_1) (not v_np13_1)) (and v_np1_1 v_np2_1 (not v_np15_1) (not v_np8_1) c b v_np10_1 (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np2_1 (not v_np15_1) (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) c b v_np10_1 (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1)) (and v_np2_1 (not v_np15_1) (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np10_1 (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1))) [2021-08-13 19:34:09,269 INFO L113 kiGriesValidityCheck]: 15#(or (and v_np2_1 v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np12_1) (not v_np13_1)) (and v_np1_1 v_np2_1 (not v_np15_1) (not v_np8_1) c b v_np10_1 (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np2_1 (not v_np15_1) (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) c b v_np10_1 (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1)) (and v_np2_1 (not v_np15_1) (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np10_1 (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np2_1) v_np5_1 v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np2_1) v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1))) [2021-08-13 19:34:09,269 INFO L113 kiGriesValidityCheck]: 6#(or (and (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) c b v_np10_1 (not v_np1_1) (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and v_np1_1 (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) c b v_np10_1 (not v_np12_1) (not v_np13_1) (not v_np7_1)) (and (not v_np2_1) v_np5_1 v_np15_1 (not v_np8_1) (not v_np1_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np7_1))) [2021-08-13 19:34:09,271 INFO L113 kiGriesValidityCheck]: 8#(or (and (not v_np15_1) (not v_np2_1) (not v_np8_1) v_np7_1 (not v_np1_1) v_np12_1 v_np13_1 (not v_np5_1) (not v_np10_1)) (and (not v_np15_1) (not v_np2_1) v_np5_1 (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np12_1) (not v_np13_1)) (and v_np2_1 (not v_np15_1) (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1)) (and (not v_np15_1) (not v_np2_1) (not v_np8_1) v_np7_1 v_np10_1 (not v_np1_1) (not v_np5_1) (not v_np12_1) (not v_np13_1))) [2021-08-13 19:34:09,323 INFO L748 CegarLoopForPetriNet]: Checked inductivity and non-interference of Owicki-Gries annotation in 78546176ns [2021-08-13 19:34:09,324 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 19:34:09,327 INFO L202 PluginConnector]: Adding new model easy8.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 07:34:09 BasicIcfg [2021-08-13 19:34:09,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 19:34:09,328 INFO L168 Benchmark]: Toolchain (without parser) took 719.39 ms. Allocated memory is still 158.3 MB. Free memory was 138.4 MB in the beginning and 103.8 MB in the end (delta: 34.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 8.0 GB. [2021-08-13 19:34:09,328 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 158.3 MB. Free memory was 139.5 MB in the beginning and 139.4 MB in the end (delta: 83.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 19:34:09,329 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.74 ms. Allocated memory is still 158.3 MB. Free memory was 138.3 MB in the beginning and 136.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 19:34:09,329 INFO L168 Benchmark]: Boogie Preprocessor took 7.36 ms. Allocated memory is still 158.3 MB. Free memory was 136.9 MB in the beginning and 136.1 MB in the end (delta: 882.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-13 19:34:09,329 INFO L168 Benchmark]: RCFGBuilder took 148.40 ms. Allocated memory is still 158.3 MB. Free memory was 136.1 MB in the beginning and 126.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-08-13 19:34:09,330 INFO L168 Benchmark]: TraceAbstraction took 544.66 ms. Allocated memory is still 158.3 MB. Free memory was 126.3 MB in the beginning and 103.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-08-13 19:34:09,331 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 0.10 ms. Allocated memory is still 158.3 MB. Free memory was 139.5 MB in the beginning and 139.4 MB in the end (delta: 83.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 15.74 ms. Allocated memory is still 158.3 MB. Free memory was 138.3 MB in the beginning and 136.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 7.36 ms. Allocated memory is still 158.3 MB. Free memory was 136.9 MB in the beginning and 136.1 MB in the end (delta: 882.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 148.40 ms. Allocated memory is still 158.3 MB. Free memory was 136.1 MB in the beginning and 126.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 544.66 ms. Allocated memory is still 158.3 MB. Free memory was 126.3 MB in the beginning and 103.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 39]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 23 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 271.3ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 87.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 26.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.3ms SsaConstructionTime, 11.3ms SatisfiabilityAnalysisTime, 61.8ms InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...