/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 14:01:26,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 14:01:26,318 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-24 14:01:26,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 14:01:26,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 14:01:26,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 14:01:26,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 14:01:26,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 14:01:26,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 14:01:26,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 14:01:26,343 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 14:01:26,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 14:01:26,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 14:01:26,344 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 14:01:26,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 14:01:26,345 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 14:01:26,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 14:01:26,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 14:01:26,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 14:01:26,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 14:01:26,346 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 14:01:26,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 14:01:26,353 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 14:01:26,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 14:01:26,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 14:01:26,354 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 14:01:26,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 14:01:26,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 14:01:26,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 14:01:26,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 14:01:26,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 14:01:26,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 14:01:26,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 14:01:26,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 14:01:26,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 14:01:26,357 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-24 14:01:26,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 14:01:26,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 14:01:26,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 14:01:26,653 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 14:01:26,653 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 14:01:26,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-08-24 14:01:27,889 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 14:01:28,139 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 14:01:28,139 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-08-24 14:01:28,151 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f91f0edee/de233d8d55f04f07a5ab50dc9fbf5f37/FLAG806cf1f71 [2023-08-24 14:01:28,162 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f91f0edee/de233d8d55f04f07a5ab50dc9fbf5f37 [2023-08-24 14:01:28,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 14:01:28,165 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 14:01:28,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 14:01:28,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 14:01:28,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 14:01:28,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e1a2d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28, skipping insertion in model container [2023-08-24 14:01:28,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,220 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 14:01:28,491 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c[18874,18887] [2023-08-24 14:01:28,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 14:01:28,504 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 14:01:28,565 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c[18874,18887] [2023-08-24 14:01:28,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 14:01:28,575 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 14:01:28,575 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 14:01:28,581 INFO L206 MainTranslator]: Completed translation [2023-08-24 14:01:28,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28 WrapperNode [2023-08-24 14:01:28,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 14:01:28,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 14:01:28,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 14:01:28,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 14:01:28,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,724 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2377 [2023-08-24 14:01:28,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 14:01:28,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 14:01:28,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 14:01:28,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 14:01:28,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,797 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 14:01:28,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 14:01:28,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 14:01:28,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 14:01:28,841 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (1/1) ... [2023-08-24 14:01:28,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 14:01:28,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 14:01:28,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-24 14:01:28,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-24 14:01:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 14:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 14:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 14:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 14:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 14:01:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 14:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 14:01:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 14:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-24 14:01:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-24 14:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 14:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 14:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 14:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-24 14:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 14:01:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 14:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 14:01:28,975 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 14:01:29,183 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 14:01:29,185 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 14:01:30,941 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 14:01:33,127 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 14:01:33,127 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-08-24 14:01:33,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 02:01:33 BoogieIcfgContainer [2023-08-24 14:01:33,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 14:01:33,132 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 14:01:33,132 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 14:01:33,134 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 14:01:33,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 02:01:28" (1/3) ... [2023-08-24 14:01:33,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374c8386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 02:01:33, skipping insertion in model container [2023-08-24 14:01:33,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:01:28" (2/3) ... [2023-08-24 14:01:33,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374c8386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 02:01:33, skipping insertion in model container [2023-08-24 14:01:33,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 02:01:33" (3/3) ... [2023-08-24 14:01:33,136 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-trans.wvr.c [2023-08-24 14:01:33,152 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 14:01:33,152 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 14:01:33,152 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 14:01:33,525 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-24 14:01:33,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 669 places, 738 transitions, 1500 flow [2023-08-24 14:01:33,875 INFO L124 PetriNetUnfolderBase]: 79/735 cut-off events. [2023-08-24 14:01:33,875 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 14:01:33,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 735 events. 79/735 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 922 event pairs, 0 based on Foata normal form. 0/655 useless extension candidates. Maximal degree in co-relation 654. Up to 7 conditions per place. [2023-08-24 14:01:33,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 669 places, 738 transitions, 1500 flow [2023-08-24 14:01:33,898 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 656 places, 725 transitions, 1468 flow [2023-08-24 14:01:33,901 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 14:01:33,912 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 656 places, 725 transitions, 1468 flow [2023-08-24 14:01:33,915 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 656 places, 725 transitions, 1468 flow [2023-08-24 14:01:33,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 656 places, 725 transitions, 1468 flow [2023-08-24 14:01:34,055 INFO L124 PetriNetUnfolderBase]: 79/725 cut-off events. [2023-08-24 14:01:34,055 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 14:01:34,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 725 events. 79/725 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 920 event pairs, 0 based on Foata normal form. 0/646 useless extension candidates. Maximal degree in co-relation 654. Up to 7 conditions per place. [2023-08-24 14:01:34,071 INFO L119 LiptonReduction]: Number of co-enabled transitions 22110 [2023-08-24 14:02:54,783 INFO L134 LiptonReduction]: Checked pairs total: 22747 [2023-08-24 14:02:54,783 INFO L136 LiptonReduction]: Total number of compositions: 868 [2023-08-24 14:02:54,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 14:02:54,799 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77fbae33, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 14:02:54,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-24 14:02:54,848 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 14:02:54,848 INFO L124 PetriNetUnfolderBase]: 24/57 cut-off events. [2023-08-24 14:02:54,848 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 14:02:54,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 14:02:54,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 14:02:54,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 14:02:54,853 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 14:02:54,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1173394938, now seen corresponding path program 1 times [2023-08-24 14:02:54,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 14:02:54,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967730316] [2023-08-24 14:02:54,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:02:54,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 14:02:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:02:55,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 14:02:55,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 14:02:55,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967730316] [2023-08-24 14:02:55,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967730316] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 14:02:55,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 14:02:55,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 14:02:55,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122129386] [2023-08-24 14:02:55,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 14:02:55,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 14:02:55,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 14:02:55,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 14:02:55,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 14:02:55,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1606 [2023-08-24 14:02:55,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 58 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 520.3333333333334) internal successors, (1561), 3 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:02:55,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 14:02:55,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1606 [2023-08-24 14:02:55,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 14:02:57,050 INFO L124 PetriNetUnfolderBase]: 873/1102 cut-off events. [2023-08-24 14:02:57,050 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-08-24 14:02:57,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2272 conditions, 1102 events. 873/1102 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2617 event pairs, 333 based on Foata normal form. 0/562 useless extension candidates. Maximal degree in co-relation 1844. Up to 1097 conditions per place. [2023-08-24 14:02:57,056 INFO L140 encePairwiseOnDemand]: 1593/1606 looper letters, 52 selfloop transitions, 12 changer transitions 0/64 dead transitions. [2023-08-24 14:02:57,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 64 transitions, 274 flow [2023-08-24 14:02:57,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 14:02:57,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 14:02:57,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1603 transitions. [2023-08-24 14:02:57,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33271066832710666 [2023-08-24 14:02:57,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1603 transitions. [2023-08-24 14:02:57,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1603 transitions. [2023-08-24 14:02:57,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 14:02:57,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1603 transitions. [2023-08-24 14:02:57,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.3333333333334) internal successors, (1603), 3 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:02:57,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1606.0) internal successors, (6424), 4 states have internal predecessors, (6424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:02:57,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1606.0) internal successors, (6424), 4 states have internal predecessors, (6424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:02:57,104 INFO L175 Difference]: Start difference. First operand has 44 places, 58 transitions, 134 flow. Second operand 3 states and 1603 transitions. [2023-08-24 14:02:57,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 64 transitions, 274 flow [2023-08-24 14:02:57,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 64 transitions, 262 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-24 14:02:57,111 INFO L231 Difference]: Finished difference. Result has 41 places, 64 transitions, 184 flow [2023-08-24 14:02:57,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1606, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=41, PETRI_TRANSITIONS=64} [2023-08-24 14:02:57,115 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-08-24 14:02:57,115 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 64 transitions, 184 flow [2023-08-24 14:02:57,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 520.3333333333334) internal successors, (1561), 3 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:02:57,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 14:02:57,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 14:02:57,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 14:02:57,117 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 14:02:57,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 14:02:57,118 INFO L85 PathProgramCache]: Analyzing trace with hash 910148020, now seen corresponding path program 1 times [2023-08-24 14:02:57,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 14:02:57,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761817375] [2023-08-24 14:02:57,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:02:57,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 14:02:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:02:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-24 14:02:57,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 14:02:57,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761817375] [2023-08-24 14:02:57,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761817375] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 14:02:57,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 14:02:57,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 14:02:57,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193280434] [2023-08-24 14:02:57,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 14:02:57,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 14:02:57,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 14:02:57,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 14:02:57,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 14:02:57,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1606 [2023-08-24 14:02:57,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 64 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 522.3333333333334) internal successors, (1567), 3 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:02:57,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 14:02:57,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1606 [2023-08-24 14:02:57,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 14:02:58,735 INFO L124 PetriNetUnfolderBase]: 873/1105 cut-off events. [2023-08-24 14:02:58,736 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-24 14:02:58,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2260 conditions, 1105 events. 873/1105 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2617 event pairs, 333 based on Foata normal form. 1/572 useless extension candidates. Maximal degree in co-relation 2169. Up to 1103 conditions per place. [2023-08-24 14:02:58,740 INFO L140 encePairwiseOnDemand]: 1599/1606 looper letters, 61 selfloop transitions, 6 changer transitions 0/67 dead transitions. [2023-08-24 14:02:58,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 67 transitions, 324 flow [2023-08-24 14:02:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 14:02:58,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 14:02:58,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1597 transitions. [2023-08-24 14:02:58,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33146533831465336 [2023-08-24 14:02:58,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1597 transitions. [2023-08-24 14:02:58,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1597 transitions. [2023-08-24 14:02:58,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 14:02:58,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1597 transitions. [2023-08-24 14:02:58,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:02:58,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1606.0) internal successors, (6424), 4 states have internal predecessors, (6424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:02:58,763 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1606.0) internal successors, (6424), 4 states have internal predecessors, (6424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:02:58,763 INFO L175 Difference]: Start difference. First operand has 41 places, 64 transitions, 184 flow. Second operand 3 states and 1597 transitions. [2023-08-24 14:02:58,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 67 transitions, 324 flow [2023-08-24 14:02:58,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 67 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 14:02:58,765 INFO L231 Difference]: Finished difference. Result has 43 places, 67 transitions, 204 flow [2023-08-24 14:02:58,766 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1606, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=43, PETRI_TRANSITIONS=67} [2023-08-24 14:02:58,766 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2023-08-24 14:02:58,766 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 67 transitions, 204 flow [2023-08-24 14:02:58,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 522.3333333333334) internal successors, (1567), 3 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:02:58,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 14:02:58,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 14:02:58,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 14:02:58,768 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 14:02:58,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 14:02:58,769 INFO L85 PathProgramCache]: Analyzing trace with hash -657861694, now seen corresponding path program 1 times [2023-08-24 14:02:58,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 14:02:58,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014288363] [2023-08-24 14:02:58,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:02:58,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 14:02:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:02:59,044 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-24 14:02:59,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 14:02:59,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014288363] [2023-08-24 14:02:59,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014288363] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 14:02:59,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 14:02:59,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 14:02:59,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854273850] [2023-08-24 14:02:59,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 14:02:59,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 14:02:59,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 14:02:59,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 14:02:59,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 14:02:59,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1606 [2023-08-24 14:02:59,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 67 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 523.3333333333334) internal successors, (1570), 3 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:02:59,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 14:02:59,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1606 [2023-08-24 14:02:59,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 14:03:00,276 INFO L124 PetriNetUnfolderBase]: 873/1108 cut-off events. [2023-08-24 14:03:00,276 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-24 14:03:00,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2274 conditions, 1108 events. 873/1108 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2617 event pairs, 333 based on Foata normal form. 1/573 useless extension candidates. Maximal degree in co-relation 2224. Up to 1106 conditions per place. [2023-08-24 14:03:00,281 INFO L140 encePairwiseOnDemand]: 1599/1606 looper letters, 64 selfloop transitions, 6 changer transitions 0/70 dead transitions. [2023-08-24 14:03:00,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 70 transitions, 350 flow [2023-08-24 14:03:00,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 14:03:00,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 14:03:00,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1597 transitions. [2023-08-24 14:03:00,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33146533831465336 [2023-08-24 14:03:00,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1597 transitions. [2023-08-24 14:03:00,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1597 transitions. [2023-08-24 14:03:00,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 14:03:00,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1597 transitions. [2023-08-24 14:03:00,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:03:00,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1606.0) internal successors, (6424), 4 states have internal predecessors, (6424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:03:00,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1606.0) internal successors, (6424), 4 states have internal predecessors, (6424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:03:00,302 INFO L175 Difference]: Start difference. First operand has 43 places, 67 transitions, 204 flow. Second operand 3 states and 1597 transitions. [2023-08-24 14:03:00,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 70 transitions, 350 flow [2023-08-24 14:03:00,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 70 transitions, 344 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 14:03:00,304 INFO L231 Difference]: Finished difference. Result has 45 places, 70 transitions, 230 flow [2023-08-24 14:03:00,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1606, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=45, PETRI_TRANSITIONS=70} [2023-08-24 14:03:00,305 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 1 predicate places. [2023-08-24 14:03:00,305 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 70 transitions, 230 flow [2023-08-24 14:03:00,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 523.3333333333334) internal successors, (1570), 3 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:03:00,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 14:03:00,306 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 14:03:00,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 14:03:00,307 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 14:03:00,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 14:03:00,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1688389035, now seen corresponding path program 1 times [2023-08-24 14:03:00,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 14:03:00,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428651858] [2023-08-24 14:03:00,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:03:00,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 14:03:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:03:00,714 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-24 14:03:00,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 14:03:00,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428651858] [2023-08-24 14:03:00,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428651858] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-24 14:03:00,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425800873] [2023-08-24 14:03:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:03:00,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 14:03:00,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 14:03:00,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-24 14:03:00,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-24 14:03:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:03:01,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-24 14:03:01,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-24 14:03:01,634 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-24 14:03:01,634 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-24 14:03:01,657 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-24 14:03:01,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425800873] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-24 14:03:01,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-24 14:03:01,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-24 14:03:01,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526899605] [2023-08-24 14:03:01,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-24 14:03:01,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-24 14:03:01,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 14:03:01,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-24 14:03:01,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-24 14:03:01,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1606 [2023-08-24 14:03:01,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 70 transitions, 230 flow. Second operand has 8 states, 8 states have (on average 518.0) internal successors, (4144), 8 states have internal predecessors, (4144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:03:01,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 14:03:01,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1606 [2023-08-24 14:03:01,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 14:03:02,959 INFO L124 PetriNetUnfolderBase]: 873/1132 cut-off events. [2023-08-24 14:03:02,960 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-24 14:03:02,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2357 conditions, 1132 events. 873/1132 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2621 event pairs, 333 based on Foata normal form. 12/608 useless extension candidates. Maximal degree in co-relation 2306. Up to 1097 conditions per place. [2023-08-24 14:03:02,966 INFO L140 encePairwiseOnDemand]: 1581/1606 looper letters, 46 selfloop transitions, 48 changer transitions 0/94 dead transitions. [2023-08-24 14:03:02,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 94 transitions, 514 flow [2023-08-24 14:03:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 14:03:02,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 14:03:02,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4206 transitions. [2023-08-24 14:03:02,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32736612702366125 [2023-08-24 14:03:02,977 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4206 transitions. [2023-08-24 14:03:02,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4206 transitions. [2023-08-24 14:03:02,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 14:03:02,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4206 transitions. [2023-08-24 14:03:02,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 525.75) internal successors, (4206), 8 states have internal predecessors, (4206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:03:03,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1606.0) internal successors, (14454), 9 states have internal predecessors, (14454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:03:03,010 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1606.0) internal successors, (14454), 9 states have internal predecessors, (14454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:03:03,010 INFO L175 Difference]: Start difference. First operand has 45 places, 70 transitions, 230 flow. Second operand 8 states and 4206 transitions. [2023-08-24 14:03:03,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 94 transitions, 514 flow [2023-08-24 14:03:03,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 94 transitions, 508 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 14:03:03,020 INFO L231 Difference]: Finished difference. Result has 52 places, 94 transitions, 466 flow [2023-08-24 14:03:03,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1606, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=466, PETRI_PLACES=52, PETRI_TRANSITIONS=94} [2023-08-24 14:03:03,022 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 8 predicate places. [2023-08-24 14:03:03,023 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 94 transitions, 466 flow [2023-08-24 14:03:03,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 518.0) internal successors, (4144), 8 states have internal predecessors, (4144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 14:03:03,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 14:03:03,025 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 14:03:03,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-24 14:03:03,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 14:03:03,237 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 14:03:03,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 14:03:03,238 INFO L85 PathProgramCache]: Analyzing trace with hash 868530338, now seen corresponding path program 2 times [2023-08-24 14:03:03,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 14:03:03,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613827603] [2023-08-24 14:03:03,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:03:03,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 14:03:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:03:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-08-24 14:03:03,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 14:03:03,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613827603] [2023-08-24 14:03:03,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613827603] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-24 14:03:03,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589381514] [2023-08-24 14:03:03,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-24 14:03:03,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 14:03:03,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 14:03:03,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-24 14:03:03,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-24 14:03:04,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-24 14:03:04,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-24 14:03:04,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 23 conjunts are in the unsatisfiable core [2023-08-24 14:03:04,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-24 14:04:07,034 WARN L234 SmtUtils]: Spent 55.30s on a formula simplification. DAG size of input: 191 DAG size of output: 191 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-24 14:04:07,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:04:07,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:04:07,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:04:07,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:04:07,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:04:07,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:04:19,286 WARN L234 SmtUtils]: Spent 11.57s on a formula simplification. DAG size of input: 1726 DAG size of output: 1059 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-24 14:04:19,288 INFO L322 Elim1Store]: treesize reduction 1396, result has 59.5 percent of original size [2023-08-24 14:04:19,290 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 28 select indices, 28 select index equivalence classes, 6 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 400 case distinctions, treesize of input 1529 treesize of output 3336 Received shutdown request... [2023-08-24 14:15:04,641 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-24 14:15:04,641 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-24 14:15:04,716 WARN L266 SmtUtils]: Removed 2 from assertion stack [2023-08-24 14:15:04,717 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-08-24 14:15:04,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-24 14:15:04,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 14:15:04,919 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 44ms.. [2023-08-24 14:15:04,922 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-24 14:15:04,923 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-24 14:15:04,923 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-24 14:15:04,923 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-24 14:15:04,926 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 14:15:04,926 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 14:15:04,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 02:15:04 BasicIcfg [2023-08-24 14:15:04,929 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 14:15:04,930 INFO L158 Benchmark]: Toolchain (without parser) took 816765.04ms. Allocated memory was 354.4MB in the beginning and 2.0GB in the end (delta: 1.7GB). Free memory was 330.7MB in the beginning and 849.0MB in the end (delta: -518.3MB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. [2023-08-24 14:15:04,930 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 354.4MB. Free memory was 331.9MB in the beginning and 331.8MB in the end (delta: 74.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 14:15:04,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.93ms. Allocated memory is still 354.4MB. Free memory was 330.4MB in the beginning and 305.1MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-24 14:15:04,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 142.67ms. Allocated memory is still 354.4MB. Free memory was 305.1MB in the beginning and 293.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-24 14:15:04,931 INFO L158 Benchmark]: Boogie Preprocessor took 114.76ms. Allocated memory is still 354.4MB. Free memory was 293.6MB in the beginning and 282.9MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-24 14:15:04,931 INFO L158 Benchmark]: RCFGBuilder took 4289.48ms. Allocated memory was 354.4MB in the beginning and 725.6MB in the end (delta: 371.2MB). Free memory was 282.9MB in the beginning and 644.2MB in the end (delta: -361.3MB). Peak memory consumption was 278.5MB. Max. memory is 16.0GB. [2023-08-24 14:15:04,932 INFO L158 Benchmark]: TraceAbstraction took 811797.51ms. Allocated memory was 725.6MB in the beginning and 2.0GB in the end (delta: 1.3GB). Free memory was 643.1MB in the beginning and 849.0MB in the end (delta: -205.9MB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. [2023-08-24 14:15:04,934 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 354.4MB. Free memory was 331.9MB in the beginning and 331.8MB in the end (delta: 74.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 415.93ms. Allocated memory is still 354.4MB. Free memory was 330.4MB in the beginning and 305.1MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 142.67ms. Allocated memory is still 354.4MB. Free memory was 305.1MB in the beginning and 293.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Preprocessor took 114.76ms. Allocated memory is still 354.4MB. Free memory was 293.6MB in the beginning and 282.9MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * RCFGBuilder took 4289.48ms. Allocated memory was 354.4MB in the beginning and 725.6MB in the end (delta: 371.2MB). Free memory was 282.9MB in the beginning and 644.2MB in the end (delta: -361.3MB). Peak memory consumption was 278.5MB. Max. memory is 16.0GB. * TraceAbstraction took 811797.51ms. Allocated memory was 725.6MB in the beginning and 2.0GB in the end (delta: 1.3GB). Free memory was 643.1MB in the beginning and 849.0MB in the end (delta: -205.9MB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 80.9s, 656 PlacesBefore, 44 PlacesAfterwards, 725 TransitionsBefore, 58 TransitionsAfterwards, 22110 CoEnabledTransitionPairs, 8 FixpointIterations, 478 TrivialSequentialCompositions, 176 ConcurrentSequentialCompositions, 109 TrivialYvCompositions, 50 ConcurrentYvCompositions, 55 ChoiceCompositions, 868 TotalNumberOfCompositions, 22747 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21017, independent: 20980, independent conditional: 0, independent unconditional: 20980, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12231, independent: 12200, independent conditional: 0, independent unconditional: 12200, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21017, independent: 8780, independent conditional: 0, independent unconditional: 8780, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 12231, unknown conditional: 0, unknown unconditional: 12231] , Statistics on independence cache: Total cache size (in pairs): 97, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 341]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 44ms.. - TimeoutResultAtElement [Line: 334]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 44ms.. - TimeoutResultAtElement [Line: 333]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 44ms.. - TimeoutResultAtElement [Line: 335]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 44ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 801 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 811.4s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 81.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 528 IncrementalHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 0 mSDtfsCounter, 528 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=466occurred in iteration=4, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 SizeOfPredicates, 1 NumberOfNonLiveVariables, 666 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 48/51 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown