/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/file-item-trans.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 08:09:57,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 08:09:57,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 08:09:57,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 08:09:57,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 08:09:57,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 08:09:57,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 08:09:57,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 08:09:57,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 08:09:57,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 08:09:57,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 08:09:57,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 08:09:57,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 08:09:57,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 08:09:57,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 08:09:57,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 08:09:57,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 08:09:57,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 08:09:57,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 08:09:57,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 08:09:57,934 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.epf [2021-08-13 08:09:57,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 08:09:57,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 08:09:57,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 08:09:57,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 08:09:57,972 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 08:09:57,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 08:09:57,972 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 08:09:57,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 08:09:57,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 08:09:57,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 08:09:57,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 08:09:57,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 08:09:57,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 08:09:57,974 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 08:09:57,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 08:09:57,974 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 08:09:57,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 08:09:57,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 08:09:57,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 08:09:57,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 08:09:57,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 08:09:57,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 08:09:57,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 08:09:57,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 08:09:57,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 08:09:57,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 08:09:57,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 08:09:57,976 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 08:09:57,976 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 08:09:57,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 08:09:57,977 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 08:09:57,977 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 08:09:57,977 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 08:09:58,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 08:09:58,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 08:09:58,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 08:09:58,333 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 08:09:58,335 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 08:09:58,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/file-item-trans.wvr.bpl [2021-08-13 08:09:58,336 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/file-item-trans.wvr.bpl' [2021-08-13 08:09:58,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 08:09:58,377 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 08:09:58,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 08:09:58,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 08:09:58,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 08:09:58,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 08:09:58" (1/1) ... [2021-08-13 08:09:58,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 08:09:58" (1/1) ... [2021-08-13 08:09:58,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 08:09:58,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 08:09:58,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 08:09:58,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 08:09:58,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 08:09:58" (1/1) ... [2021-08-13 08:09:58,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 08:09:58" (1/1) ... [2021-08-13 08:09:58,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 08:09:58" (1/1) ... [2021-08-13 08:09:58,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 08:09:58" (1/1) ... [2021-08-13 08:09:58,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 08:09:58" (1/1) ... [2021-08-13 08:09:58,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 08:09:58" (1/1) ... [2021-08-13 08:09:58,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 08:09:58" (1/1) ... [2021-08-13 08:09:58,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 08:09:58,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 08:09:58,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 08:09:58,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 08:09:58,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 08:09:58" (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 08:09:58,497 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-13 08:09:58,497 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-13 08:09:58,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-13 08:09:58,497 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-13 08:09:58,498 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-13 08:09:58,498 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-13 08:09:58,498 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 08:09:58,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 08:09:58,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 08:09:58,498 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-13 08:09:58,498 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-13 08:09:58,498 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-13 08:09:58,499 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 08:09:58,662 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 08:09:58,662 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 08:09:58,664 INFO L202 PluginConnector]: Adding new model file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 08:09:58 BoogieIcfgContainer [2021-08-13 08:09:58,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 08:09:58,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 08:09:58,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 08:09:58,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 08:09:58,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 08:09:58" (1/2) ... [2021-08-13 08:09:58,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71baef3e and model type file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 08:09:58, skipping insertion in model container [2021-08-13 08:09:58,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 08:09:58" (2/2) ... [2021-08-13 08:09:58,670 INFO L111 eAbstractionObserver]: Analyzing ICFG file-item-trans.wvr.bpl [2021-08-13 08:09:58,688 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 08:09:58,688 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 08:09:58,689 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 08:09:58,720 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-08-13 08:09:58,739 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 08:09:58,758 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 08:09:58,758 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 08:09:58,758 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 08:09:58,758 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 08:09:58,758 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 08:09:58,758 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 08:09:58,759 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 08:09:58,759 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 08:09:58,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2021-08-13 08:09:58,785 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-08-13 08:09:58,786 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-08-13 08:09:58,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 08:09:58,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 19 transitions, 62 flow [2021-08-13 08:09:58,790 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 14 transitions, 46 flow [2021-08-13 08:09:58,797 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-08-13 08:09:58,797 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-08-13 08:09:58,797 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 08:09:58,798 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 08:09:58,798 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 08:09:58,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 08:09:58,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1083414778, now seen corresponding path program 1 times [2021-08-13 08:09:58,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 08:09:58,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849118635] [2021-08-13 08:09:58,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 08:09:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 08:09:59,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:09:59,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:09:59,029 INFO L142 QuantifierPusher]: treesize reduction 16, result has 56.8 percent of original size [2021-08-13 08:09:59,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 08:09:59,139 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-08-13 08:09:59,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 08:09:59,213 INFO L142 QuantifierPusher]: treesize reduction 14, result has 61.1 percent of original size [2021-08-13 08:09:59,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 08:09:59,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:09:59,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:09:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 08:09:59,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 08:09:59,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849118635] [2021-08-13 08:09:59,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849118635] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 08:09:59,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 08:09:59,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 08:09:59,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220400799] [2021-08-13 08:09:59,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 08:09:59,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 08:09:59,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 08:09:59,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 08:09:59,264 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 08:09:59,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 46 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:09:59,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 08:09:59,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 08:09:59,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 08:09:59,464 INFO L129 PetriNetUnfolder]: 3/40 cut-off events. [2021-08-13 08:09:59,464 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-08-13 08:09:59,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 40 events. 3/40 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 119 event pairs, 1 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 50. Up to 7 conditions per place. [2021-08-13 08:09:59,467 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 5 selfloop transitions, 2 changer transitions 1/18 dead transitions. [2021-08-13 08:09:59,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 70 flow [2021-08-13 08:09:59,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 08:09:59,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 08:09:59,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-08-13 08:09:59,479 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8315789473684211 [2021-08-13 08:09:59,480 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-08-13 08:09:59,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-08-13 08:09:59,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 08:09:59,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-08-13 08:09:59,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:09:59,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:09:59,493 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:09:59,494 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2021-08-13 08:09:59,494 INFO L482 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 70 flow [2021-08-13 08:09:59,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:09:59,494 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 08:09:59,494 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 08:09:59,495 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 08:09:59,495 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 08:09:59,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 08:09:59,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1676293040, now seen corresponding path program 2 times [2021-08-13 08:09:59,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 08:09:59,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202202509] [2021-08-13 08:09:59,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 08:09:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 08:09:59,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:09:59,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:09:59,624 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-08-13 08:09:59,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 08:09:59,660 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.6 percent of original size [2021-08-13 08:09:59,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-08-13 08:09:59,771 INFO L142 QuantifierPusher]: treesize reduction 29, result has 49.1 percent of original size [2021-08-13 08:09:59,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-08-13 08:09:59,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:09:59,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:09:59,793 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 08:09:59,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 08:09:59,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202202509] [2021-08-13 08:09:59,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202202509] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 08:09:59,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 08:09:59,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 08:09:59,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885815700] [2021-08-13 08:09:59,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 08:09:59,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 08:09:59,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 08:09:59,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 08:09:59,805 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 08:09:59,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:09:59,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 08:09:59,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 08:09:59,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 08:09:59,977 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2021-08-13 08:10:00,204 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-08-13 08:10:00,216 INFO L129 PetriNetUnfolder]: 2/45 cut-off events. [2021-08-13 08:10:00,217 INFO L130 PetriNetUnfolder]: For 21/29 co-relation queries the response was YES. [2021-08-13 08:10:00,217 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 45 events. 2/45 cut-off events. For 21/29 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 157 event pairs, 0 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 70. Up to 8 conditions per place. [2021-08-13 08:10:00,217 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 5 selfloop transitions, 3 changer transitions 4/22 dead transitions. [2021-08-13 08:10:00,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 110 flow [2021-08-13 08:10:00,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 08:10:00,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 08:10:00,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-08-13 08:10:00,219 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8315789473684211 [2021-08-13 08:10:00,219 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-08-13 08:10:00,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-08-13 08:10:00,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 08:10:00,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-08-13 08:10:00,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,221 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,222 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2021-08-13 08:10:00,222 INFO L482 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 110 flow [2021-08-13 08:10:00,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,222 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 08:10:00,222 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 08:10:00,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 08:10:00,222 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 08:10:00,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 08:10:00,223 INFO L82 PathProgramCache]: Analyzing trace with hash 746710662, now seen corresponding path program 3 times [2021-08-13 08:10:00,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 08:10:00,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288647693] [2021-08-13 08:10:00,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 08:10:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 08:10:00,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:10:00,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:10:00,269 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-08-13 08:10:00,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-08-13 08:10:00,294 INFO L142 QuantifierPusher]: treesize reduction 8, result has 79.5 percent of original size [2021-08-13 08:10:00,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 08:10:00,322 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-08-13 08:10:00,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-08-13 08:10:00,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:10:00,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:10:00,340 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 08:10:00,340 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 08:10:00,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288647693] [2021-08-13 08:10:00,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288647693] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 08:10:00,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 08:10:00,340 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 08:10:00,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207581036] [2021-08-13 08:10:00,341 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 08:10:00,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 08:10:00,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 08:10:00,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 08:10:00,342 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 08:10:00,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 110 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 08:10:00,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 08:10:00,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 08:10:00,476 INFO L129 PetriNetUnfolder]: 1/48 cut-off events. [2021-08-13 08:10:00,477 INFO L130 PetriNetUnfolder]: For 38/46 co-relation queries the response was YES. [2021-08-13 08:10:00,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 48 events. 1/48 cut-off events. For 38/46 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 192 event pairs, 0 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 87. Up to 8 conditions per place. [2021-08-13 08:10:00,477 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 7 selfloop transitions, 3 changer transitions 6/26 dead transitions. [2021-08-13 08:10:00,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 26 transitions, 166 flow [2021-08-13 08:10:00,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 08:10:00,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 08:10:00,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-08-13 08:10:00,479 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8315789473684211 [2021-08-13 08:10:00,479 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-08-13 08:10:00,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-08-13 08:10:00,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 08:10:00,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-08-13 08:10:00,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,481 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,482 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 12 predicate places. [2021-08-13 08:10:00,482 INFO L482 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 166 flow [2021-08-13 08:10:00,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,482 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 08:10:00,482 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 08:10:00,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 08:10:00,483 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 08:10:00,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 08:10:00,483 INFO L82 PathProgramCache]: Analyzing trace with hash 180987596, now seen corresponding path program 4 times [2021-08-13 08:10:00,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 08:10:00,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777910188] [2021-08-13 08:10:00,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 08:10:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 08:10:00,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:10:00,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:10:00,509 INFO L142 QuantifierPusher]: treesize reduction 15, result has 59.5 percent of original size [2021-08-13 08:10:00,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 08:10:00,543 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-08-13 08:10:00,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 08:10:00,601 INFO L142 QuantifierPusher]: treesize reduction 14, result has 61.1 percent of original size [2021-08-13 08:10:00,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 08:10:00,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:10:00,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:10:00,615 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 08:10:00,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 08:10:00,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777910188] [2021-08-13 08:10:00,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777910188] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 08:10:00,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 08:10:00,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 08:10:00,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072796777] [2021-08-13 08:10:00,617 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 08:10:00,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 08:10:00,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 08:10:00,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 08:10:00,618 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 08:10:00,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 08:10:00,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 08:10:00,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 08:10:00,739 INFO L129 PetriNetUnfolder]: 1/46 cut-off events. [2021-08-13 08:10:00,739 INFO L130 PetriNetUnfolder]: For 64/91 co-relation queries the response was YES. [2021-08-13 08:10:00,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 46 events. 1/46 cut-off events. For 64/91 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 178 event pairs, 0 based on Foata normal form. 6/52 useless extension candidates. Maximal degree in co-relation 101. Up to 7 conditions per place. [2021-08-13 08:10:00,740 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 5 selfloop transitions, 1 changer transitions 9/25 dead transitions. [2021-08-13 08:10:00,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 188 flow [2021-08-13 08:10:00,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 08:10:00,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 08:10:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-08-13 08:10:00,741 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8210526315789474 [2021-08-13 08:10:00,741 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-08-13 08:10:00,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-08-13 08:10:00,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 08:10:00,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-08-13 08:10:00,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,743 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,743 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 16 predicate places. [2021-08-13 08:10:00,744 INFO L482 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 188 flow [2021-08-13 08:10:00,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,744 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 08:10:00,744 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 08:10:00,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 08:10:00,744 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 08:10:00,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 08:10:00,745 INFO L82 PathProgramCache]: Analyzing trace with hash 865899794, now seen corresponding path program 5 times [2021-08-13 08:10:00,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 08:10:00,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213834762] [2021-08-13 08:10:00,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 08:10:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 08:10:00,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:10:00,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:10:00,786 INFO L142 QuantifierPusher]: treesize reduction 15, result has 67.4 percent of original size [2021-08-13 08:10:00,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 08:10:00,863 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-08-13 08:10:00,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 08:10:00,920 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-08-13 08:10:00,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-08-13 08:10:00,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:10:00,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:10:00,936 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 08:10:00,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 08:10:00,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213834762] [2021-08-13 08:10:00,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213834762] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 08:10:00,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 08:10:00,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 08:10:00,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187659655] [2021-08-13 08:10:00,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 08:10:00,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 08:10:00,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 08:10:00,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 08:10:00,938 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 08:10:00,938 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 188 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:00,938 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 08:10:00,939 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 08:10:00,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 08:10:01,094 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-08-13 08:10:01,094 INFO L130 PetriNetUnfolder]: For 87/99 co-relation queries the response was YES. [2021-08-13 08:10:01,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 52 events. 0/52 cut-off events. For 87/99 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 237 event pairs, 0 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-08-13 08:10:01,095 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 3 selfloop transitions, 1 changer transitions 12/26 dead transitions. [2021-08-13 08:10:01,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 26 transitions, 230 flow [2021-08-13 08:10:01,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 08:10:01,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 08:10:01,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-08-13 08:10:01,098 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8210526315789474 [2021-08-13 08:10:01,098 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-08-13 08:10:01,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-08-13 08:10:01,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 08:10:01,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-08-13 08:10:01,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:01,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:01,101 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:01,101 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 20 predicate places. [2021-08-13 08:10:01,101 INFO L482 AbstractCegarLoop]: Abstraction has has 44 places, 26 transitions, 230 flow [2021-08-13 08:10:01,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:01,101 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 08:10:01,102 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 08:10:01,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 08:10:01,102 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 08:10:01,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 08:10:01,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1296085392, now seen corresponding path program 6 times [2021-08-13 08:10:01,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 08:10:01,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121057314] [2021-08-13 08:10:01,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 08:10:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 08:10:01,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:10:01,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:10:01,142 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-08-13 08:10:01,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 08:10:01,155 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-08-13 08:10:01,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 08:10:01,174 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-08-13 08:10:01,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-08-13 08:10:01,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 08:10:01,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 08:10:01,197 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 08:10:01,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 08:10:01,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121057314] [2021-08-13 08:10:01,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121057314] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 08:10:01,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 08:10:01,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 08:10:01,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778239735] [2021-08-13 08:10:01,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 08:10:01,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 08:10:01,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 08:10:01,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 08:10:01,199 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 08:10:01,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 26 transitions, 230 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:01,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 08:10:01,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 08:10:01,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 08:10:01,309 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-08-13 08:10:01,310 INFO L130 PetriNetUnfolder]: For 111/131 co-relation queries the response was YES. [2021-08-13 08:10:01,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 50 events. 0/50 cut-off events. For 111/131 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 235 event pairs, 0 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-08-13 08:10:01,310 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2021-08-13 08:10:01,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 24 transitions, 246 flow [2021-08-13 08:10:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 08:10:01,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 08:10:01,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2021-08-13 08:10:01,311 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8105263157894737 [2021-08-13 08:10:01,311 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 77 transitions. [2021-08-13 08:10:01,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 77 transitions. [2021-08-13 08:10:01,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 08:10:01,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 77 transitions. [2021-08-13 08:10:01,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 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 08:10:01,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:01,313 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:01,313 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 22 predicate places. [2021-08-13 08:10:01,313 INFO L482 AbstractCegarLoop]: Abstraction has has 46 places, 24 transitions, 246 flow [2021-08-13 08:10:01,313 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 08:10:01,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 08:10:57,301 INFO L742 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 8900 in 55984347262ns [2021-08-13 08:10:57,304 INFO L113 kiGriesValidityCheck]: 7#(or (and (not v_np23_1) (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np5_1) (not v_np9_1) (not v_np8_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np15_1) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (not v_np2_1) (not v_np17_1) (not v_np21_1) v_np16_1 (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) v_np3_1 (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np6_1 v_np7_1 v_np22_1 v_np0_1 v_np20_1) (and (not v_np23_1) (or (= result_10 0) (= (+ result_10 1) 0) (and (not filename_2) (not isNull_0) (or (<= (+ filename_1 result_10) (+ filename_4 result_11)) filename_5)) isNull_3 (= result_11 1)) (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (or (and (not isNull_3) (not filename_5) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) (and (not isNull_3) isNull_6) (= result_9 0)) (not v_np3_1) (not v_np9_1) (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) (not v_np8_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np15_1) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (not v_np2_1) (not v_np17_1) (or (= result_10 0) (= (+ result_10 1) 0) (= result_11 1) (= (+ result_9 1) 0) (<= (+ result_10 result_9) result_11) (= result_9 0)) (not v_np21_1) v_np16_1 (not v_np18_1) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np5_1 v_np6_1 v_np7_1 v_np22_1 v_np0_1 v_np20_1) (and (not v_np23_1) (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np5_1) (not v_np7_1) (not v_np9_1) (not v_np8_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np15_1) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (not v_np2_1) (not v_np17_1) (not v_np21_1) v_np16_1 (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) v_np3_1 (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np4_1 v_np6_1 v_np22_1 v_np0_1 v_np20_1) (and (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np9_1) (not v_np8_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (not v_np2_1) (not v_np17_1) v_np15_1 (not v_np21_1) (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np4_1 v_np6_1 (not v_np0_1) v_np22_1 v_np23_1 v_np20_1) (and (not v_np23_1) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np7_1) (not v_np3_1) (not v_np9_1) (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) (or (= (+ result_10 1) 0) isNull_3 (= result_11 1) (and (or (= result_10 0) (and (not filename_2) (<= (+ filename_1 result_10) (+ filename_4 result_11))) filename_5) (not isNull_0))) (not v_np8_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np15_1) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (not v_np2_1) (or (= result_10 0) (= (+ result_10 1) 0) (= result_11 1) (= (+ result_9 1) 0) (<= (+ result_10 result_9) result_11) (= result_9 0)) (not v_np17_1) (not v_np21_1) v_np16_1 (or (= result_10 0) (= (+ result_10 1) 0) (and (not isNull_6) (or isNull_0 filename_2 (<= (+ result_10 result_9 filename_7) filename_1)) (not filename_8)) (= (+ result_9 1) 0) (= result_9 0)) (not v_np18_1) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np4_1 v_np5_1 v_np6_1 v_np22_1 (or (and (not isNull_3) (or (not filename_5) filename_8) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) isNull_6) v_np0_1 v_np20_1) (and (not v_np23_1) (or (and (not isNull_3) (not filename_5) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) (and (not isNull_3) isNull_6) (= result_9 0)) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np9_1) (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) (not v_np8_1) v_np11_1 (not v_np1_1) (not v_np14_1) v_np12_1 (not v_np4_1) (not v_np13_1) (not v_np10_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np21_1) v_np16_1 (not v_np18_1) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np6_1 v_np22_1 v_np0_1 v_np20_1) (and (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np9_1) (not v_np8_1) v_np11_1 (not v_np1_1) (not v_np14_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np2_1) (not v_np17_1) v_np15_1 (not v_np21_1) (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np6_1 (not v_np0_1) v_np22_1 v_np23_1 v_np20_1) (and (not v_np22_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np9_1) (not v_np8_1) (not v_np1_1) (not v_np11_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (not v_np2_1) v_np14_1 (not v_np17_1) (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np6_1 (not v_np0_1) v_np21_1 v_np23_1 v_np20_1) (and (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np5_1) (not v_np3_1) (not v_np9_1) (not v_np8_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (not v_np2_1) (not v_np17_1) v_np15_1 (not v_np21_1) (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np6_1 v_np7_1 (not v_np0_1) v_np22_1 v_np23_1 v_np20_1) (and (not v_np23_1) (or (= result_10 0) (= (+ result_10 1) 0) (and (not filename_2) (not isNull_0) (or (<= (+ filename_1 result_10) (+ filename_4 result_11)) filename_5)) isNull_3 (= result_11 1)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np5_1) (not v_np3_1) (not v_np9_1) (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) (not v_np8_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) v_np12_1 (not v_np4_1) (not v_np13_1) (not v_np10_1) (not v_np15_1) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (not v_np2_1) (not v_np17_1) (not v_np21_1) v_np16_1 (or (= result_10 0) (= (+ result_10 1) 0) (= result_11 1) (= (+ result_9 1) 0) (<= (+ result_10 result_9) result_11)) (not v_np18_1) (or (= result_10 0) (= (+ result_10 1) 0) (and (not isNull_6) (or isNull_0 filename_2 (<= (+ result_10 result_9 filename_7) filename_1)) (not filename_8)) (= (+ result_9 1) 0) (= result_9 0)) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np6_1 v_np7_1 v_np22_1 (or (and (not isNull_3) (or (not filename_5) filename_8) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) isNull_6) v_np0_1 v_np20_1) (and (not v_np23_1) (not v_np5_1) (not v_np7_1) (not v_np9_1) (not v_np8_1) v_np11_1 (not v_np1_1) (not v_np14_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np21_1) v_np16_1 (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np3_1 v_np6_1 v_np22_1 v_np0_1 v_np20_1) (and (not v_np23_1) (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (or (and (not isNull_3) (not filename_5) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) (and (not isNull_3) isNull_6) (= result_9 0)) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np9_1) (or (= (+ result_10 1) 0) isNull_3 (= result_11 1) (and (or (= result_10 0) (and (not filename_2) (<= (+ filename_1 result_10) (+ filename_4 result_11))) filename_5) (not isNull_0))) (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) (not v_np8_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) v_np12_1 (not v_np13_1) (not v_np10_1) (not v_np15_1) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (not v_np2_1) (not v_np17_1) (or (= result_10 0) (= (+ result_10 1) 0) (= result_11 1) (= (+ result_9 1) 0) (<= (+ result_10 result_9) result_11) (= result_9 0)) (not v_np21_1) v_np16_1 (not v_np18_1) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np4_1 v_np6_1 v_np22_1 v_np0_1 v_np20_1) (and (not v_np23_1) (or (and (not isNull_3) (not filename_5) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) (and (not isNull_3) isNull_6) (= result_9 0)) (not v_np7_1) (not v_np3_1) (not v_np9_1) (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) (not v_np8_1) v_np11_1 (not v_np1_1) (not v_np14_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np15_1) (not v_np2_1) (not v_np17_1) (not v_np21_1) v_np16_1 (not v_np18_1) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np19_1) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np5_1 v_np6_1 v_np22_1 v_np0_1 v_np20_1)) [2021-08-13 08:10:57,332 INFO L748 CegarLoopForPetriNet]: Checked inductivity and non-interference of Owicki-Gries annotation in 34404450ns [2021-08-13 08:10:57,333 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 08:10:57,338 INFO L168 Benchmark]: Toolchain (without parser) took 58961.39 ms. Allocated memory was 176.2 MB in the beginning and 533.7 MB in the end (delta: 357.6 MB). Free memory was 156.9 MB in the beginning and 357.7 MB in the end (delta: -200.8 MB). Peak memory consumption was 156.7 MB. Max. memory is 8.0 GB. [2021-08-13 08:10:57,339 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 176.2 MB. Free memory is still 158.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 08:10:57,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.17 ms. Allocated memory is still 176.2 MB. Free memory was 156.9 MB in the beginning and 155.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 08:10:57,343 INFO L168 Benchmark]: Boogie Preprocessor took 21.57 ms. Allocated memory is still 176.2 MB. Free memory was 155.4 MB in the beginning and 154.4 MB in the end (delta: 953.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 08:10:57,343 INFO L168 Benchmark]: RCFGBuilder took 235.50 ms. Allocated memory is still 176.2 MB. Free memory was 154.3 MB in the beginning and 144.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-08-13 08:10:57,344 INFO L168 Benchmark]: TraceAbstraction took 58672.13 ms. Allocated memory was 176.2 MB in the beginning and 533.7 MB in the end (delta: 357.6 MB). Free memory was 143.7 MB in the beginning and 357.7 MB in the end (delta: -214.0 MB). Peak memory consumption was 143.1 MB. Max. memory is 8.0 GB. [2021-08-13 08:10:57,346 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 0.13 ms. Allocated memory is still 176.2 MB. Free memory is still 158.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 27.17 ms. Allocated memory is still 176.2 MB. Free memory was 156.9 MB in the beginning and 155.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.57 ms. Allocated memory is still 176.2 MB. Free memory was 155.4 MB in the beginning and 154.4 MB in the end (delta: 953.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 235.50 ms. Allocated memory is still 176.2 MB. Free memory was 154.3 MB in the beginning and 144.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 58672.13 ms. Allocated memory was 176.2 MB in the beginning and 533.7 MB in the end (delta: 357.6 MB). Free memory was 143.7 MB in the beginning and 357.7 MB in the end (delta: -214.0 MB). Peak memory consumption was 143.1 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...