/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 INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 07:46:43,492 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 07:46:43,575 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 07:46:43,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 07:46:43,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 07:46:43,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 07:46:43,614 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 07:46:43,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 07:46:43,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 07:46:43,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 07:46:43,619 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 07:46:43,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 07:46:43,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 07:46:43,620 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 07:46:43,621 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 07:46:43,621 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 07:46:43,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 07:46:43,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 07:46:43,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 07:46:43,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 07:46:43,622 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 07:46:43,622 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 07:46:43,623 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 07:46:43,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 07:46:43,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 07:46:43,624 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 07:46:43,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 07:46:43,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 07:46:43,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 07:46:43,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 07:46:43,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 07:46:43,625 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 07:46:43,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 07:46:43,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 07:46:43,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 07:46:43,626 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST [2023-08-24 07:46:43,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 07:46:43,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 07:46:43,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 07:46:43,931 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 07:46:43,933 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 07:46:43,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c [2023-08-24 07:46:45,050 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 07:46:45,285 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 07:46:45,285 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c [2023-08-24 07:46:45,298 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b4238ff2/ea724b65c5724aea92cecb3991585e4d/FLAG4b2664c47 [2023-08-24 07:46:45,316 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b4238ff2/ea724b65c5724aea92cecb3991585e4d [2023-08-24 07:46:45,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 07:46:45,319 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 07:46:45,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 07:46:45,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 07:46:45,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 07:46:45,324 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:45,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2ae6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45, skipping insertion in model container [2023-08-24 07:46:45,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:45,372 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 07:46:45,648 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-subst.wvr.c[19262,19275] [2023-08-24 07:46:45,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 07:46:45,662 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 07:46:45,784 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-subst.wvr.c[19262,19275] [2023-08-24 07:46:45,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 07:46:45,794 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 07:46:45,794 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 07:46:45,804 INFO L206 MainTranslator]: Completed translation [2023-08-24 07:46:45,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45 WrapperNode [2023-08-24 07:46:45,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 07:46:45,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 07:46:45,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 07:46:45,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 07:46:45,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:45,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:45,919 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2377 [2023-08-24 07:46:45,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 07:46:45,920 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 07:46:45,920 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 07:46:45,920 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 07:46:45,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:45,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:45,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:45,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:45,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:46,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:46,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:46,014 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:46,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 07:46:46,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 07:46:46,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 07:46:46,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 07:46:46,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (1/1) ... [2023-08-24 07:46:46,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 07:46:46,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 07:46:46,058 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 07:46:46,077 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 07:46:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 07:46:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 07:46:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 07:46:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 07:46:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 07:46:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 07:46:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 07:46:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 07:46:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-24 07:46:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-24 07:46:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 07:46:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 07:46:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 07:46:46,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-24 07:46:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 07:46:46,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 07:46:46,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 07:46:46,091 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 07:46:46,303 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 07:46:46,305 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 07:46:48,066 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 07:46:50,101 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 07:46:50,101 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-08-24 07:46:50,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 07:46:50 BoogieIcfgContainer [2023-08-24 07:46:50,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 07:46:50,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 07:46:50,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 07:46:50,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 07:46:50,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 07:46:45" (1/3) ... [2023-08-24 07:46:50,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410ea70b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 07:46:50, skipping insertion in model container [2023-08-24 07:46:50,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 07:46:45" (2/3) ... [2023-08-24 07:46:50,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410ea70b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 07:46:50, skipping insertion in model container [2023-08-24 07:46:50,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 07:46:50" (3/3) ... [2023-08-24 07:46:50,112 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-subst.wvr.c [2023-08-24 07:46:50,128 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 07:46:50,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 07:46:50,130 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 07:46:50,580 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-24 07:46:50,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 669 places, 738 transitions, 1500 flow [2023-08-24 07:46:50,865 INFO L124 PetriNetUnfolderBase]: 79/735 cut-off events. [2023-08-24 07:46:50,865 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 07:46:50,873 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 924 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 07:46:50,873 INFO L82 GeneralOperation]: Start removeDead. Operand has 669 places, 738 transitions, 1500 flow [2023-08-24 07:46:50,882 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 656 places, 725 transitions, 1468 flow [2023-08-24 07:46:50,885 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 07:46:50,892 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 656 places, 725 transitions, 1468 flow [2023-08-24 07:46:50,894 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 656 places, 725 transitions, 1468 flow [2023-08-24 07:46:50,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 656 places, 725 transitions, 1468 flow [2023-08-24 07:46:51,026 INFO L124 PetriNetUnfolderBase]: 79/725 cut-off events. [2023-08-24 07:46:51,026 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 07:46:51,029 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 912 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 07:46:51,040 INFO L119 LiptonReduction]: Number of co-enabled transitions 22110 [2023-08-24 07:48:09,218 INFO L134 LiptonReduction]: Checked pairs total: 23447 [2023-08-24 07:48:09,219 INFO L136 LiptonReduction]: Total number of compositions: 855 [2023-08-24 07:48:09,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 07:48:09,236 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;@6145a3a3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 07:48:09,236 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-24 07:48:09,301 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 07:48:09,301 INFO L124 PetriNetUnfolderBase]: 24/57 cut-off events. [2023-08-24 07:48:09,301 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 07:48:09,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 07:48:09,302 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 07:48:09,302 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 07:48:09,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 07:48:09,306 INFO L85 PathProgramCache]: Analyzing trace with hash 6418575, now seen corresponding path program 1 times [2023-08-24 07:48:09,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 07:48:09,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368738152] [2023-08-24 07:48:09,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 07:48:09,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 07:48:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 07:48:10,152 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 07:48:10,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 07:48:10,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368738152] [2023-08-24 07:48:10,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368738152] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 07:48:10,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 07:48:10,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 07:48:10,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366070241] [2023-08-24 07:48:10,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 07:48:10,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 07:48:10,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 07:48:10,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 07:48:10,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 07:48:10,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1593 [2023-08-24 07:48:10,190 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 07:48:10,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 07:48:10,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1593 [2023-08-24 07:48:10,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 07:48:11,812 INFO L124 PetriNetUnfolderBase]: 873/1099 cut-off events. [2023-08-24 07:48:11,813 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-08-24 07:48:11,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2266 conditions, 1099 events. 873/1099 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2612 event pairs, 333 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 1844. Up to 1097 conditions per place. [2023-08-24 07:48:11,819 INFO L140 encePairwiseOnDemand]: 1586/1593 looper letters, 55 selfloop transitions, 6 changer transitions 0/61 dead transitions. [2023-08-24 07:48:11,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 61 transitions, 262 flow [2023-08-24 07:48:11,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 07:48:11,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 07:48:11,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1597 transitions. [2023-08-24 07:48:11,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.334170328520611 [2023-08-24 07:48:11,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1597 transitions. [2023-08-24 07:48:11,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1597 transitions. [2023-08-24 07:48:11,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 07:48:11,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1597 transitions. [2023-08-24 07:48:11,850 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 07:48:11,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 07:48:11,863 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 07:48:11,865 INFO L175 Difference]: Start difference. First operand has 44 places, 58 transitions, 134 flow. Second operand 3 states and 1597 transitions. [2023-08-24 07:48:11,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 61 transitions, 262 flow [2023-08-24 07:48:11,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 61 transitions, 250 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-24 07:48:11,873 INFO L231 Difference]: Finished difference. Result has 41 places, 61 transitions, 154 flow [2023-08-24 07:48:11,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1593, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=41, PETRI_TRANSITIONS=61} [2023-08-24 07:48:11,877 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-08-24 07:48:11,877 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 61 transitions, 154 flow [2023-08-24 07:48:11,879 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 07:48:11,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 07:48:11,879 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] [2023-08-24 07:48:11,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 07:48:11,879 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 07:48:11,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 07:48:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash 235699813, now seen corresponding path program 1 times [2023-08-24 07:48:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 07:48:11,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876180958] [2023-08-24 07:48:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 07:48:11,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 07:48:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 07:48:12,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-24 07:48:12,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 07:48:12,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876180958] [2023-08-24 07:48:12,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876180958] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 07:48:12,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 07:48:12,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 07:48:12,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152611842] [2023-08-24 07:48:12,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 07:48:12,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 07:48:12,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 07:48:12,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 07:48:12,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 07:48:12,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1593 [2023-08-24 07:48:12,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 61 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 521.3333333333334) internal successors, (1564), 3 states have internal predecessors, (1564), 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 07:48:12,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 07:48:12,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1593 [2023-08-24 07:48:12,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 07:48:13,561 INFO L124 PetriNetUnfolderBase]: 873/1102 cut-off events. [2023-08-24 07:48:13,562 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 07:48:13,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2242 conditions, 1102 events. 873/1102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2585 event pairs, 333 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 2211. Up to 1100 conditions per place. [2023-08-24 07:48:13,566 INFO L140 encePairwiseOnDemand]: 1586/1593 looper letters, 58 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2023-08-24 07:48:13,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 64 transitions, 288 flow [2023-08-24 07:48:13,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 07:48:13,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 07:48:13,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1597 transitions. [2023-08-24 07:48:13,588 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.334170328520611 [2023-08-24 07:48:13,588 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1597 transitions. [2023-08-24 07:48:13,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1597 transitions. [2023-08-24 07:48:13,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 07:48:13,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1597 transitions. [2023-08-24 07:48:13,593 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 07:48:13,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 07:48:13,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 07:48:13,603 INFO L175 Difference]: Start difference. First operand has 41 places, 61 transitions, 154 flow. Second operand 3 states and 1597 transitions. [2023-08-24 07:48:13,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 64 transitions, 288 flow [2023-08-24 07:48:13,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 64 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 07:48:13,606 INFO L231 Difference]: Finished difference. Result has 43 places, 64 transitions, 180 flow [2023-08-24 07:48:13,606 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1593, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=43, PETRI_TRANSITIONS=64} [2023-08-24 07:48:13,607 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2023-08-24 07:48:13,608 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 64 transitions, 180 flow [2023-08-24 07:48:13,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 521.3333333333334) internal successors, (1564), 3 states have internal predecessors, (1564), 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 07:48:13,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 07:48:13,611 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 07:48:13,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 07:48:13,611 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 07:48:13,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 07:48:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1032498358, now seen corresponding path program 1 times [2023-08-24 07:48:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 07:48:13,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304590807] [2023-08-24 07:48:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 07:48:13,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 07:48:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 07:48:13,966 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 07:48:13,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 07:48:13,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304590807] [2023-08-24 07:48:13,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304590807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 07:48:13,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 07:48:13,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 07:48:13,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953219666] [2023-08-24 07:48:13,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 07:48:13,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 07:48:13,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 07:48:13,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 07:48:13,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 07:48:13,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1593 [2023-08-24 07:48:13,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 64 transitions, 180 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 07:48:13,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 07:48:13,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1593 [2023-08-24 07:48:13,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 07:48:15,428 INFO L124 PetriNetUnfolderBase]: 873/1108 cut-off events. [2023-08-24 07:48:15,428 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-24 07:48:15,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2265 conditions, 1108 events. 873/1108 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2585 event pairs, 333 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 2229. Up to 1103 conditions per place. [2023-08-24 07:48:15,432 INFO L140 encePairwiseOnDemand]: 1580/1593 looper letters, 58 selfloop transitions, 12 changer transitions 0/70 dead transitions. [2023-08-24 07:48:15,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 70 transitions, 332 flow [2023-08-24 07:48:15,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 07:48:15,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 07:48:15,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1603 transitions. [2023-08-24 07:48:15,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33542582130152754 [2023-08-24 07:48:15,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1603 transitions. [2023-08-24 07:48:15,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1603 transitions. [2023-08-24 07:48:15,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 07:48:15,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1603 transitions. [2023-08-24 07:48:15,442 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 07:48:15,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 07:48:15,453 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 07:48:15,454 INFO L175 Difference]: Start difference. First operand has 43 places, 64 transitions, 180 flow. Second operand 3 states and 1603 transitions. [2023-08-24 07:48:15,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 70 transitions, 332 flow [2023-08-24 07:48:15,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 70 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 07:48:15,457 INFO L231 Difference]: Finished difference. Result has 45 places, 70 transitions, 236 flow [2023-08-24 07:48:15,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1593, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=45, PETRI_TRANSITIONS=70} [2023-08-24 07:48:15,458 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 1 predicate places. [2023-08-24 07:48:15,458 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 70 transitions, 236 flow [2023-08-24 07:48:15,460 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 07:48:15,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 07:48:15,460 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 07:48:15,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 07:48:15,460 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 07:48:15,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 07:48:15,461 INFO L85 PathProgramCache]: Analyzing trace with hash 854079949, now seen corresponding path program 1 times [2023-08-24 07:48:15,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 07:48:15,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814272816] [2023-08-24 07:48:15,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 07:48:15,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 07:48:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 07:48:15,917 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 07:48:15,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 07:48:15,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814272816] [2023-08-24 07:48:15,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814272816] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-24 07:48:15,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791058511] [2023-08-24 07:48:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 07:48:15,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 07:48:15,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 07:48:15,922 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 07:48:15,923 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 07:48:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 07:48:16,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-24 07:48:16,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-24 07:48:16,864 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 07:48:16,864 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-24 07:48:16,887 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 07:48:16,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791058511] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-24 07:48:16,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-24 07:48:16,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-24 07:48:16,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850950768] [2023-08-24 07:48:16,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-24 07:48:16,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-24 07:48:16,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 07:48:16,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-24 07:48:16,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-24 07:48:16,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1593 [2023-08-24 07:48:16,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 70 transitions, 236 flow. Second operand has 8 states, 8 states have (on average 517.25) internal successors, (4138), 8 states have internal predecessors, (4138), 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 07:48:16,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 07:48:16,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1593 [2023-08-24 07:48:16,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 07:48:18,389 INFO L124 PetriNetUnfolderBase]: 873/1132 cut-off events. [2023-08-24 07:48:18,390 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-24 07:48:18,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2360 conditions, 1132 events. 873/1132 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2572 event pairs, 333 based on Foata normal form. 11/610 useless extension candidates. Maximal degree in co-relation 2296. Up to 1097 conditions per place. [2023-08-24 07:48:18,394 INFO L140 encePairwiseOnDemand]: 1568/1593 looper letters, 46 selfloop transitions, 48 changer transitions 0/94 dead transitions. [2023-08-24 07:48:18,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 94 transitions, 520 flow [2023-08-24 07:48:18,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 07:48:18,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 07:48:18,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4206 transitions. [2023-08-24 07:48:18,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3300376647834275 [2023-08-24 07:48:18,405 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4206 transitions. [2023-08-24 07:48:18,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4206 transitions. [2023-08-24 07:48:18,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 07:48:18,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4206 transitions. [2023-08-24 07:48:18,416 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 07:48:18,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1593.0) internal successors, (14337), 9 states have internal predecessors, (14337), 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 07:48:18,433 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1593.0) internal successors, (14337), 9 states have internal predecessors, (14337), 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 07:48:18,433 INFO L175 Difference]: Start difference. First operand has 45 places, 70 transitions, 236 flow. Second operand 8 states and 4206 transitions. [2023-08-24 07:48:18,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 94 transitions, 520 flow [2023-08-24 07:48:18,435 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 07:48:18,436 INFO L231 Difference]: Finished difference. Result has 52 places, 94 transitions, 466 flow [2023-08-24 07:48:18,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1593, 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 07:48:18,437 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 8 predicate places. [2023-08-24 07:48:18,437 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 94 transitions, 466 flow [2023-08-24 07:48:18,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 517.25) internal successors, (4138), 8 states have internal predecessors, (4138), 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 07:48:18,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 07:48:18,439 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 07:48:18,452 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 07:48:18,649 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 07:48:18,649 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 07:48:18,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 07:48:18,650 INFO L85 PathProgramCache]: Analyzing trace with hash 367964635, now seen corresponding path program 2 times [2023-08-24 07:48:18,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 07:48:18,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112050927] [2023-08-24 07:48:18,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 07:48:18,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 07:48:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 07:48:19,229 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 07:48:19,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 07:48:19,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112050927] [2023-08-24 07:48:19,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112050927] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-24 07:48:19,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24128439] [2023-08-24 07:48:19,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-24 07:48:19,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 07:48:19,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 07:48:19,233 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 07:48:19,258 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 07:48:20,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-24 07:48:20,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-24 07:48:20,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-24 07:48:20,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-24 07:48:23,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 07:48:23,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 07:48:23,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 07:48:23,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 07:48:23,582 INFO L322 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2023-08-24 07:48:23,583 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 446 treesize of output 411 [2023-08-24 07:48:23,873 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2023-08-24 07:48:24,231 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-24 07:48:24,232 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2023-08-24 07:48:25,193 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2023-08-24 07:50:15,084 WARN L234 SmtUtils]: Spent 1.53m on a formula simplification. DAG size of input: 286 DAG size of output: 246 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-24 07:50:16,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 07:50:16,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 07:50:16,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 07:50:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 07:52:09,404 WARN L234 SmtUtils]: Spent 1.89m on a formula simplification. DAG size of input: 3798 DAG size of output: 3043 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-24 07:52:09,413 INFO L322 Elim1Store]: treesize reduction 1644, result has 78.4 percent of original size [2023-08-24 07:52:09,417 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 42 select indices, 42 select index equivalence classes, 4 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 899 case distinctions, treesize of input 2929 treesize of output 8446 Received shutdown request... [2023-08-24 08:00:23,768 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 08:00:23,768 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 08:00:23,832 WARN L266 SmtUtils]: Removed 2 from assertion stack [2023-08-24 08:00:23,834 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-08-24 08:00:23,843 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 08:00:24,034 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 08:00:24,035 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 5 for 63ms.. [2023-08-24 08:00:24,036 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-24 08:00:24,036 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-24 08:00:24,036 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-24 08:00:24,036 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-24 08:00:24,039 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 08:00:24,039 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 08:00:24,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 08:00:24 BasicIcfg [2023-08-24 08:00:24,041 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 08:00:24,041 INFO L158 Benchmark]: Toolchain (without parser) took 818722.04ms. Allocated memory was 385.9MB in the beginning and 2.4GB in the end (delta: 2.0GB). Free memory was 360.4MB in the beginning and 1.1GB in the end (delta: -735.0MB). Peak memory consumption was 1.5GB. Max. memory is 16.0GB. [2023-08-24 08:00:24,042 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 385.9MB. Free memory was 363.3MB in the beginning and 363.2MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 08:00:24,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.15ms. Allocated memory is still 385.9MB. Free memory was 359.9MB in the beginning and 334.5MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-24 08:00:24,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.70ms. Allocated memory is still 385.9MB. Free memory was 334.5MB in the beginning and 323.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-24 08:00:24,043 INFO L158 Benchmark]: Boogie Preprocessor took 105.53ms. Allocated memory is still 385.9MB. Free memory was 323.5MB in the beginning and 313.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-24 08:00:24,043 INFO L158 Benchmark]: RCFGBuilder took 4078.09ms. Allocated memory was 385.9MB in the beginning and 878.7MB in the end (delta: 492.8MB). Free memory was 312.5MB in the beginning and 368.6MB in the end (delta: -56.2MB). Peak memory consumption was 439.8MB. Max. memory is 16.0GB. [2023-08-24 08:00:24,043 INFO L158 Benchmark]: TraceAbstraction took 813934.27ms. Allocated memory was 878.7MB in the beginning and 2.4GB in the end (delta: 1.5GB). Free memory was 367.6MB in the beginning and 1.1GB in the end (delta: -727.8MB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2023-08-24 08:00:24,045 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 385.9MB. Free memory was 363.3MB in the beginning and 363.2MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 485.15ms. Allocated memory is still 385.9MB. Free memory was 359.9MB in the beginning and 334.5MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 113.70ms. Allocated memory is still 385.9MB. Free memory was 334.5MB in the beginning and 323.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Preprocessor took 105.53ms. Allocated memory is still 385.9MB. Free memory was 323.5MB in the beginning and 313.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * RCFGBuilder took 4078.09ms. Allocated memory was 385.9MB in the beginning and 878.7MB in the end (delta: 492.8MB). Free memory was 312.5MB in the beginning and 368.6MB in the end (delta: -56.2MB). Peak memory consumption was 439.8MB. Max. memory is 16.0GB. * TraceAbstraction took 813934.27ms. Allocated memory was 878.7MB in the beginning and 2.4GB in the end (delta: 1.5GB). Free memory was 367.6MB in the beginning and 1.1GB in the end (delta: -727.8MB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 78.3s, 656 PlacesBefore, 44 PlacesAfterwards, 725 TransitionsBefore, 58 TransitionsAfterwards, 22110 CoEnabledTransitionPairs, 7 FixpointIterations, 470 TrivialSequentialCompositions, 168 ConcurrentSequentialCompositions, 113 TrivialYvCompositions, 49 ConcurrentYvCompositions, 55 ChoiceCompositions, 855 TotalNumberOfCompositions, 23447 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21909, independent: 21869, independent conditional: 0, independent unconditional: 21869, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12759, independent: 12725, independent conditional: 0, independent unconditional: 12725, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21909, independent: 9144, independent conditional: 0, independent unconditional: 9144, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 12759, unknown conditional: 0, unknown unconditional: 12759] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 344]: 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 5 for 63ms.. - TimeoutResultAtElement [Line: 337]: 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 5 for 63ms.. - TimeoutResultAtElement [Line: 338]: 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 5 for 63ms.. - TimeoutResultAtElement [Line: 336]: 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 5 for 63ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 801 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 813.4s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 78.6s, 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, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 528 IncrementalHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 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, 0.0s 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, 1.5s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 1 NumberOfNonLiveVariables, 666 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 42/45 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