/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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 14:57:29,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 14:57:29,767 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 [2023-08-25 14:57:29,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 14:57:29,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 14:57:29,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 14:57:29,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 14:57:29,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 14:57:29,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 14:57:29,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 14:57:29,813 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 14:57:29,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 14:57:29,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 14:57:29,815 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 14:57:29,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 14:57:29,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 14:57:29,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 14:57:29,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 14:57:29,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 14:57:29,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 14:57:29,816 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 14:57:29,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 14:57:29,817 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 14:57:29,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 14:57:29,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 14:57:29,818 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 14:57:29,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 14:57:29,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 14:57:29,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 14:57:29,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 14:57:29,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 14:57:29,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 14:57:29,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 14:57:29,821 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 14:57:29,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 14:57:29,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 14:57:30,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 14:57:30,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 14:57:30,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 14:57:30,145 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 14:57:30,145 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 14:57:30,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 14:57:31,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 14:57:31,664 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 14:57:31,665 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 14:57:31,680 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c243c421/5c076a07843a4b93ac06ee39bbf3aac6/FLAG57e3801d5 [2023-08-25 14:57:31,692 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c243c421/5c076a07843a4b93ac06ee39bbf3aac6 [2023-08-25 14:57:31,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 14:57:31,695 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 14:57:31,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 14:57:31,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 14:57:31,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 14:57:31,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:57:31" (1/1) ... [2023-08-25 14:57:31,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f0c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:31, skipping insertion in model container [2023-08-25 14:57:31,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:57:31" (1/1) ... [2023-08-25 14:57:31,745 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 14:57:32,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 14:57:32,069 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 14:57:32,098 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 14:57:32,100 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 14:57:32,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 14:57:32,165 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 14:57:32,165 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 14:57:32,171 INFO L206 MainTranslator]: Completed translation [2023-08-25 14:57:32,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32 WrapperNode [2023-08-25 14:57:32,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 14:57:32,173 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 14:57:32,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 14:57:32,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 14:57:32,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (1/1) ... [2023-08-25 14:57:32,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (1/1) ... [2023-08-25 14:57:32,229 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2023-08-25 14:57:32,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 14:57:32,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 14:57:32,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 14:57:32,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 14:57:32,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (1/1) ... [2023-08-25 14:57:32,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (1/1) ... [2023-08-25 14:57:32,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (1/1) ... [2023-08-25 14:57:32,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (1/1) ... [2023-08-25 14:57:32,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (1/1) ... [2023-08-25 14:57:32,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (1/1) ... [2023-08-25 14:57:32,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (1/1) ... [2023-08-25 14:57:32,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (1/1) ... [2023-08-25 14:57:32,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 14:57:32,267 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 14:57:32,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 14:57:32,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 14:57:32,268 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (1/1) ... [2023-08-25 14:57:32,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 14:57:32,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 14:57:32,318 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) [2023-08-25 14:57:32,339 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 [2023-08-25 14:57:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 14:57:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 14:57:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 14:57:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 14:57:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 14:57:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 14:57:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 14:57:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 14:57:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 14:57:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 14:57:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 14:57:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 14:57:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 14:57:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 14:57:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 14:57:32,356 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 14:57:32,499 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 14:57:32,501 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 14:57:32,747 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 14:57:32,911 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 14:57:32,911 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 14:57:32,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:57:32 BoogieIcfgContainer [2023-08-25 14:57:32,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 14:57:32,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 14:57:32,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 14:57:32,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 14:57:32,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:57:31" (1/3) ... [2023-08-25 14:57:32,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9735dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:57:32, skipping insertion in model container [2023-08-25 14:57:32,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:57:32" (2/3) ... [2023-08-25 14:57:32,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9735dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:57:32, skipping insertion in model container [2023-08-25 14:57:32,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:57:32" (3/3) ... [2023-08-25 14:57:32,922 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 14:57:32,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 14:57:32,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2023-08-25 14:57:32,938 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 14:57:32,989 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 14:57:33,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 14:57:33,056 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 14:57:33,057 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:57:33,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-25 14:57:33,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 14:57:33,067 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 114 transitions, 237 flow [2023-08-25 14:57:33,070 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 14:57:33,077 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 14:57:33,083 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 14:57:33,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 237 flow [2023-08-25 14:57:33,122 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 14:57:33,123 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:57:33,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-25 14:57:33,127 INFO L119 LiptonReduction]: Number of co-enabled transitions 4170 [2023-08-25 14:57:37,274 INFO L134 LiptonReduction]: Checked pairs total: 13753 [2023-08-25 14:57:37,274 INFO L136 LiptonReduction]: Total number of compositions: 102 [2023-08-25 14:57:37,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 14:57:37,290 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;@a892a42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 14:57:37,290 INFO L358 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2023-08-25 14:57:37,292 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 14:57:37,292 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 14:57:37,293 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:57:37,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:57:37,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 14:57:37,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:57:37,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:57:37,297 INFO L85 PathProgramCache]: Analyzing trace with hash 608554, now seen corresponding path program 1 times [2023-08-25 14:57:37,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:57:37,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948091195] [2023-08-25 14:57:37,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:57:37,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:57:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:57:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:57:37,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:57:37,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948091195] [2023-08-25 14:57:37,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948091195] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:57:37,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:57:37,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:57:37,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77031383] [2023-08-25 14:57:37,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:57:37,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 14:57:37,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:57:37,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 14:57:37,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 14:57:37,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 219 [2023-08-25 14:57:37,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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) [2023-08-25 14:57:37,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:57:37,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 219 [2023-08-25 14:57:37,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:57:37,637 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-25 14:57:37,638 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-25 14:57:37,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3189 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-25 14:57:37,648 INFO L140 encePairwiseOnDemand]: 195/219 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-25 14:57:37,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-25 14:57:37,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 14:57:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 14:57:37,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-08-25 14:57:37,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4474885844748858 [2023-08-25 14:57:37,661 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-08-25 14:57:37,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-08-25 14:57:37,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:57:37,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-08-25 14:57:37,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 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) [2023-08-25 14:57:37,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2023-08-25 14:57:37,675 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2023-08-25 14:57:37,677 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 93 flow. Second operand 2 states and 196 transitions. [2023-08-25 14:57:37,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-25 14:57:37,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 14:57:37,681 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-25 14:57:37,682 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-25 14:57:37,685 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -26 predicate places. [2023-08-25 14:57:37,685 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-25 14:57:37,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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) [2023-08-25 14:57:37,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:57:37,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:57:37,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 14:57:37,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:57:37,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:57:37,695 INFO L85 PathProgramCache]: Analyzing trace with hash -340268175, now seen corresponding path program 1 times [2023-08-25 14:57:37,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:57:37,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297793869] [2023-08-25 14:57:37,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:57:37,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:57:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:57:37,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:57:37,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:57:37,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297793869] [2023-08-25 14:57:37,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297793869] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:57:37,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:57:37,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:57:37,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074827056] [2023-08-25 14:57:37,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:57:37,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:57:37,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:57:37,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:57:37,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:57:37,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 219 [2023-08-25 14:57:37,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2023-08-25 14:57:37,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:57:37,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 219 [2023-08-25 14:57:37,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:57:37,946 INFO L124 PetriNetUnfolderBase]: 383/600 cut-off events. [2023-08-25 14:57:37,947 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:57:37,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 600 events. 383/600 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2378 event pairs, 71 based on Foata normal form. 16/616 useless extension candidates. Maximal degree in co-relation 1242. Up to 519 conditions per place. [2023-08-25 14:57:37,950 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 26 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2023-08-25 14:57:37,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 28 transitions, 122 flow [2023-08-25 14:57:37,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:57:37,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:57:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-25 14:57:37,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3911719939117199 [2023-08-25 14:57:37,957 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-25 14:57:37,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-25 14:57:37,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:57:37,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-25 14:57:37,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2023-08-25 14:57:37,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 14:57:37,962 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 14:57:37,963 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 257 transitions. [2023-08-25 14:57:37,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 28 transitions, 122 flow [2023-08-25 14:57:37,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 122 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 14:57:37,964 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 48 flow [2023-08-25 14:57:37,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2023-08-25 14:57:37,965 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2023-08-25 14:57:37,966 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 48 flow [2023-08-25 14:57:37,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2023-08-25 14:57:37,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:57:37,969 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:57:37,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 14:57:37,974 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:57:37,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:57:37,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1958380081, now seen corresponding path program 1 times [2023-08-25 14:57:37,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:57:37,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706118554] [2023-08-25 14:57:37,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:57:37,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:57:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:57:38,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:57:38,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:57:38,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706118554] [2023-08-25 14:57:38,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706118554] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:57:38,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:57:38,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:57:38,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71089320] [2023-08-25 14:57:38,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:57:38,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:57:38,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:57:38,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:57:38,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:57:38,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 219 [2023-08-25 14:57:38,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2023-08-25 14:57:38,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:57:38,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 219 [2023-08-25 14:57:38,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:57:38,153 INFO L124 PetriNetUnfolderBase]: 393/634 cut-off events. [2023-08-25 14:57:38,154 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2023-08-25 14:57:38,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1424 conditions, 634 events. 393/634 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2300 event pairs, 167 based on Foata normal form. 48/682 useless extension candidates. Maximal degree in co-relation 1419. Up to 256 conditions per place. [2023-08-25 14:57:38,156 INFO L140 encePairwiseOnDemand]: 215/219 looper letters, 23 selfloop transitions, 3 changer transitions 5/31 dead transitions. [2023-08-25 14:57:38,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 31 transitions, 141 flow [2023-08-25 14:57:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:57:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:57:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2023-08-25 14:57:38,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3801369863013699 [2023-08-25 14:57:38,158 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2023-08-25 14:57:38,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2023-08-25 14:57:38,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:57:38,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2023-08-25 14:57:38,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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) [2023-08-25 14:57:38,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 14:57:38,161 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 14:57:38,162 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 48 flow. Second operand 4 states and 333 transitions. [2023-08-25 14:57:38,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 31 transitions, 141 flow [2023-08-25 14:57:38,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 135 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 14:57:38,163 INFO L231 Difference]: Finished difference. Result has 31 places, 17 transitions, 58 flow [2023-08-25 14:57:38,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=31, PETRI_TRANSITIONS=17} [2023-08-25 14:57:38,163 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -21 predicate places. [2023-08-25 14:57:38,164 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 58 flow [2023-08-25 14:57:38,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2023-08-25 14:57:38,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:57:38,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:57:38,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 14:57:38,164 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:57:38,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:57:38,165 INFO L85 PathProgramCache]: Analyzing trace with hash -863850239, now seen corresponding path program 1 times [2023-08-25 14:57:38,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:57:38,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097679516] [2023-08-25 14:57:38,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:57:38,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:57:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:57:38,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:57:38,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:57:38,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097679516] [2023-08-25 14:57:38,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097679516] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:57:38,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:57:38,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:57:38,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026529585] [2023-08-25 14:57:38,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:57:38,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:57:38,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:57:38,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:57:38,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:57:38,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 219 [2023-08-25 14:57:38,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 17 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-08-25 14:57:38,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:57:38,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 219 [2023-08-25 14:57:38,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:57:38,291 INFO L124 PetriNetUnfolderBase]: 156/265 cut-off events. [2023-08-25 14:57:38,291 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2023-08-25 14:57:38,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 265 events. 156/265 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 895 event pairs, 27 based on Foata normal form. 6/271 useless extension candidates. Maximal degree in co-relation 661. Up to 226 conditions per place. [2023-08-25 14:57:38,293 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 24 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-25 14:57:38,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 138 flow [2023-08-25 14:57:38,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:57:38,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:57:38,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-25 14:57:38,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3881278538812785 [2023-08-25 14:57:38,295 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-25 14:57:38,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-25 14:57:38,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:57:38,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-25 14:57:38,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2023-08-25 14:57:38,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 14:57:38,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 14:57:38,298 INFO L175 Difference]: Start difference. First operand has 31 places, 17 transitions, 58 flow. Second operand 3 states and 255 transitions. [2023-08-25 14:57:38,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 138 flow [2023-08-25 14:57:38,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 26 transitions, 118 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-25 14:57:38,300 INFO L231 Difference]: Finished difference. Result has 29 places, 17 transitions, 52 flow [2023-08-25 14:57:38,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=29, PETRI_TRANSITIONS=17} [2023-08-25 14:57:38,302 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -23 predicate places. [2023-08-25 14:57:38,302 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 17 transitions, 52 flow [2023-08-25 14:57:38,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-08-25 14:57:38,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:57:38,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:57:38,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 14:57:38,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:57:38,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:57:38,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1009554478, now seen corresponding path program 1 times [2023-08-25 14:57:38,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:57:38,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414647133] [2023-08-25 14:57:38,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:57:38,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:57:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:57:38,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:57:38,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:57:38,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414647133] [2023-08-25 14:57:38,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414647133] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:57:38,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:57:38,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:57:38,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687355159] [2023-08-25 14:57:38,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:57:38,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:57:38,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:57:38,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:57:38,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:57:38,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 219 [2023-08-25 14:57:38,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 17 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-08-25 14:57:38,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:57:38,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 219 [2023-08-25 14:57:38,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:57:38,465 INFO L124 PetriNetUnfolderBase]: 143/246 cut-off events. [2023-08-25 14:57:38,466 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-08-25 14:57:38,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 246 events. 143/246 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 749 event pairs, 107 based on Foata normal form. 6/252 useless extension candidates. Maximal degree in co-relation 596. Up to 189 conditions per place. [2023-08-25 14:57:38,467 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 24 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-25 14:57:38,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 126 flow [2023-08-25 14:57:38,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:57:38,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:57:38,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-25 14:57:38,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3881278538812785 [2023-08-25 14:57:38,469 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-25 14:57:38,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-25 14:57:38,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:57:38,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-25 14:57:38,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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) [2023-08-25 14:57:38,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 14:57:38,473 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 14:57:38,473 INFO L175 Difference]: Start difference. First operand has 29 places, 17 transitions, 52 flow. Second operand 3 states and 255 transitions. [2023-08-25 14:57:38,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 126 flow [2023-08-25 14:57:38,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 14:57:38,475 INFO L231 Difference]: Finished difference. Result has 30 places, 17 transitions, 56 flow [2023-08-25 14:57:38,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=30, PETRI_TRANSITIONS=17} [2023-08-25 14:57:38,477 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -22 predicate places. [2023-08-25 14:57:38,478 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 17 transitions, 56 flow [2023-08-25 14:57:38,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-08-25 14:57:38,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:57:38,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:57:38,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 14:57:38,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:57:38,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:57:38,479 INFO L85 PathProgramCache]: Analyzing trace with hash 550448029, now seen corresponding path program 1 times [2023-08-25 14:57:38,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:57:38,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810794402] [2023-08-25 14:57:38,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:57:38,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:57:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:57:38,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:57:38,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:57:38,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810794402] [2023-08-25 14:57:38,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810794402] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:57:38,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:57:38,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:57:38,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738071302] [2023-08-25 14:57:38,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:57:38,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:57:38,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:57:38,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:57:38,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:57:38,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 219 [2023-08-25 14:57:38,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 17 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2023-08-25 14:57:38,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:57:38,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 219 [2023-08-25 14:57:38,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:57:38,701 INFO L124 PetriNetUnfolderBase]: 98/184 cut-off events. [2023-08-25 14:57:38,702 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2023-08-25 14:57:38,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 184 events. 98/184 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 544 event pairs, 28 based on Foata normal form. 15/199 useless extension candidates. Maximal degree in co-relation 495. Up to 149 conditions per place. [2023-08-25 14:57:38,703 INFO L140 encePairwiseOnDemand]: 214/219 looper letters, 24 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2023-08-25 14:57:38,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 145 flow [2023-08-25 14:57:38,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:57:38,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:57:38,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-25 14:57:38,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3911719939117199 [2023-08-25 14:57:38,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-25 14:57:38,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-25 14:57:38,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:57:38,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-25 14:57:38,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2023-08-25 14:57:38,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 14:57:38,708 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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) [2023-08-25 14:57:38,708 INFO L175 Difference]: Start difference. First operand has 30 places, 17 transitions, 56 flow. Second operand 3 states and 257 transitions. [2023-08-25 14:57:38,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 145 flow [2023-08-25 14:57:38,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 137 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 14:57:38,710 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 78 flow [2023-08-25 14:57:38,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-08-25 14:57:38,713 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -21 predicate places. [2023-08-25 14:57:38,715 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 78 flow [2023-08-25 14:57:38,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2023-08-25 14:57:38,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:57:38,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:57:38,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 14:57:38,716 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:57:38,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:57:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2001515441, now seen corresponding path program 1 times [2023-08-25 14:57:38,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:57:38,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858124544] [2023-08-25 14:57:38,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:57:38,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:57:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:57:38,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:57:38,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:57:38,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858124544] [2023-08-25 14:57:38,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858124544] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:57:38,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:57:38,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 14:57:38,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718465900] [2023-08-25 14:57:38,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:57:38,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:57:38,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:57:38,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:57:38,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:57:38,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 219 [2023-08-25 14:57:38,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2023-08-25 14:57:38,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:57:38,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 219 [2023-08-25 14:57:38,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:57:38,895 INFO L124 PetriNetUnfolderBase]: 56/120 cut-off events. [2023-08-25 14:57:38,895 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-08-25 14:57:38,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 120 events. 56/120 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 305 event pairs, 14 based on Foata normal form. 17/137 useless extension candidates. Maximal degree in co-relation 375. Up to 51 conditions per place. [2023-08-25 14:57:38,896 INFO L140 encePairwiseOnDemand]: 214/219 looper letters, 28 selfloop transitions, 7 changer transitions 0/35 dead transitions. [2023-08-25 14:57:38,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 195 flow [2023-08-25 14:57:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:57:38,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:57:38,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2023-08-25 14:57:38,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3881278538812785 [2023-08-25 14:57:38,898 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2023-08-25 14:57:38,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2023-08-25 14:57:38,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:57:38,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2023-08-25 14:57:38,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2023-08-25 14:57:38,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 14:57:38,903 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 14:57:38,903 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 78 flow. Second operand 4 states and 340 transitions. [2023-08-25 14:57:38,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 195 flow [2023-08-25 14:57:38,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 191 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 14:57:38,905 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 114 flow [2023-08-25 14:57:38,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-25 14:57:38,905 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -18 predicate places. [2023-08-25 14:57:38,905 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 114 flow [2023-08-25 14:57:38,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2023-08-25 14:57:38,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:57:38,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:57:38,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 14:57:38,906 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:57:38,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:57:38,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1532164429, now seen corresponding path program 1 times [2023-08-25 14:57:38,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:57:38,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093093162] [2023-08-25 14:57:38,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:57:38,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:57:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:57:39,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:57:39,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:57:39,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093093162] [2023-08-25 14:57:39,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093093162] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:57:39,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:57:39,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 14:57:39,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691715309] [2023-08-25 14:57:39,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:57:39,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 14:57:39,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:57:39,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 14:57:39,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 14:57:39,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 219 [2023-08-25 14:57:39,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 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) [2023-08-25 14:57:39,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:57:39,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 219 [2023-08-25 14:57:39,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:57:39,055 INFO L124 PetriNetUnfolderBase]: 45/98 cut-off events. [2023-08-25 14:57:39,055 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2023-08-25 14:57:39,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 98 events. 45/98 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 236 event pairs, 12 based on Foata normal form. 7/105 useless extension candidates. Maximal degree in co-relation 336. Up to 39 conditions per place. [2023-08-25 14:57:39,056 INFO L140 encePairwiseOnDemand]: 214/219 looper letters, 25 selfloop transitions, 10 changer transitions 0/35 dead transitions. [2023-08-25 14:57:39,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 219 flow [2023-08-25 14:57:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 14:57:39,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 14:57:39,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 416 transitions. [2023-08-25 14:57:39,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37990867579908677 [2023-08-25 14:57:39,058 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 416 transitions. [2023-08-25 14:57:39,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 416 transitions. [2023-08-25 14:57:39,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:57:39,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 416 transitions. [2023-08-25 14:57:39,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.2) internal successors, (416), 5 states have internal predecessors, (416), 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) [2023-08-25 14:57:39,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 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) [2023-08-25 14:57:39,061 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 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) [2023-08-25 14:57:39,061 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 114 flow. Second operand 5 states and 416 transitions. [2023-08-25 14:57:39,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 219 flow [2023-08-25 14:57:39,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 185 flow, removed 6 selfloop flow, removed 5 redundant places. [2023-08-25 14:57:39,063 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 116 flow [2023-08-25 14:57:39,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-25 14:57:39,063 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -18 predicate places. [2023-08-25 14:57:39,064 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 116 flow [2023-08-25 14:57:39,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 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) [2023-08-25 14:57:39,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:57:39,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:57:39,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 14:57:39,064 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:57:39,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:57:39,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1246461597, now seen corresponding path program 1 times [2023-08-25 14:57:39,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:57:39,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653992006] [2023-08-25 14:57:39,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:57:39,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:57:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:57:39,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:57:39,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:57:39,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653992006] [2023-08-25 14:57:39,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653992006] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:57:39,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:57:39,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 14:57:39,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931052824] [2023-08-25 14:57:39,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:57:39,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:57:39,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:57:39,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:57:39,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:57:39,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 219 [2023-08-25 14:57:39,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2023-08-25 14:57:39,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:57:39,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 219 [2023-08-25 14:57:39,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:57:39,167 INFO L124 PetriNetUnfolderBase]: 49/111 cut-off events. [2023-08-25 14:57:39,167 INFO L125 PetriNetUnfolderBase]: For 162/162 co-relation queries the response was YES. [2023-08-25 14:57:39,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 111 events. 49/111 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 298 event pairs, 15 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 375. Up to 50 conditions per place. [2023-08-25 14:57:39,168 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 26 selfloop transitions, 1 changer transitions 16/43 dead transitions. [2023-08-25 14:57:39,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 327 flow [2023-08-25 14:57:39,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:57:39,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:57:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2023-08-25 14:57:39,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3767123287671233 [2023-08-25 14:57:39,170 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 330 transitions. [2023-08-25 14:57:39,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 330 transitions. [2023-08-25 14:57:39,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:57:39,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 330 transitions. [2023-08-25 14:57:39,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2023-08-25 14:57:39,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 14:57:39,173 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 14:57:39,173 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 116 flow. Second operand 4 states and 330 transitions. [2023-08-25 14:57:39,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 327 flow [2023-08-25 14:57:39,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 271 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-25 14:57:39,175 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 97 flow [2023-08-25 14:57:39,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2023-08-25 14:57:39,175 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -16 predicate places. [2023-08-25 14:57:39,176 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 97 flow [2023-08-25 14:57:39,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2023-08-25 14:57:39,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:57:39,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:57:39,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 14:57:39,176 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:57:39,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:57:39,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1825153855, now seen corresponding path program 2 times [2023-08-25 14:57:39,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:57:39,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608937439] [2023-08-25 14:57:39,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:57:39,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:57:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:57:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:57:39,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:57:39,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608937439] [2023-08-25 14:57:39,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608937439] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:57:39,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:57:39,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 14:57:39,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347011039] [2023-08-25 14:57:39,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:57:39,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:57:39,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:57:39,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:57:39,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:57:39,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 219 [2023-08-25 14:57:39,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2023-08-25 14:57:39,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:57:39,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 219 [2023-08-25 14:57:39,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:57:39,281 INFO L124 PetriNetUnfolderBase]: 49/115 cut-off events. [2023-08-25 14:57:39,281 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2023-08-25 14:57:39,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 115 events. 49/115 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 336 event pairs, 19 based on Foata normal form. 1/116 useless extension candidates. Maximal degree in co-relation 371. Up to 69 conditions per place. [2023-08-25 14:57:39,282 INFO L140 encePairwiseOnDemand]: 215/219 looper letters, 25 selfloop transitions, 2 changer transitions 21/48 dead transitions. [2023-08-25 14:57:39,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 319 flow [2023-08-25 14:57:39,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 14:57:39,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 14:57:39,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 408 transitions. [2023-08-25 14:57:39,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3726027397260274 [2023-08-25 14:57:39,284 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 408 transitions. [2023-08-25 14:57:39,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 408 transitions. [2023-08-25 14:57:39,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:57:39,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 408 transitions. [2023-08-25 14:57:39,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.6) internal successors, (408), 5 states have internal predecessors, (408), 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) [2023-08-25 14:57:39,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 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) [2023-08-25 14:57:39,287 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 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) [2023-08-25 14:57:39,287 INFO L175 Difference]: Start difference. First operand has 36 places, 23 transitions, 97 flow. Second operand 5 states and 408 transitions. [2023-08-25 14:57:39,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 319 flow [2023-08-25 14:57:39,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 315 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 14:57:39,289 INFO L231 Difference]: Finished difference. Result has 39 places, 23 transitions, 104 flow [2023-08-25 14:57:39,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=104, PETRI_PLACES=39, PETRI_TRANSITIONS=23} [2023-08-25 14:57:39,290 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -13 predicate places. [2023-08-25 14:57:39,290 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 23 transitions, 104 flow [2023-08-25 14:57:39,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2023-08-25 14:57:39,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:57:39,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:57:39,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 14:57:39,290 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 14:57:39,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:57:39,291 INFO L85 PathProgramCache]: Analyzing trace with hash 816807717, now seen corresponding path program 3 times [2023-08-25 14:57:39,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:57:39,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855247194] [2023-08-25 14:57:39,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:57:39,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:57:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:57:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 14:57:39,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:57:39,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855247194] [2023-08-25 14:57:39,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855247194] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:57:39,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:57:39,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:57:39,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138965209] [2023-08-25 14:57:39,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:57:39,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:57:39,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:57:39,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:57:39,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:57:39,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 219 [2023-08-25 14:57:39,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 23 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2023-08-25 14:57:39,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:57:39,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 219 [2023-08-25 14:57:39,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:57:39,380 INFO L124 PetriNetUnfolderBase]: 49/116 cut-off events. [2023-08-25 14:57:39,380 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2023-08-25 14:57:39,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 116 events. 49/116 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 378 event pairs, 5 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 412. Up to 70 conditions per place. [2023-08-25 14:57:39,381 INFO L140 encePairwiseOnDemand]: 215/219 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2023-08-25 14:57:39,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 38 transitions, 249 flow [2023-08-25 14:57:39,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:57:39,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:57:39,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2023-08-25 14:57:39,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3755707762557078 [2023-08-25 14:57:39,382 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 329 transitions. [2023-08-25 14:57:39,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 329 transitions. [2023-08-25 14:57:39,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:57:39,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 329 transitions. [2023-08-25 14:57:39,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2023-08-25 14:57:39,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 14:57:39,385 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 219.0) internal successors, (1095), 5 states have internal predecessors, (1095), 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) [2023-08-25 14:57:39,386 INFO L175 Difference]: Start difference. First operand has 39 places, 23 transitions, 104 flow. Second operand 4 states and 329 transitions. [2023-08-25 14:57:39,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 38 transitions, 249 flow [2023-08-25 14:57:39,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 38 transitions, 243 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 14:57:39,388 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-08-25 14:57:39,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-08-25 14:57:39,388 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -15 predicate places. [2023-08-25 14:57:39,389 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-08-25 14:57:39,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2023-08-25 14:57:39,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (42 of 43 remaining) [2023-08-25 14:57:39,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2023-08-25 14:57:39,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2023-08-25 14:57:39,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2023-08-25 14:57:39,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2023-08-25 14:57:39,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err5ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2023-08-25 14:57:39,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (36 of 43 remaining) [2023-08-25 14:57:39,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2023-08-25 14:57:39,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2023-08-25 14:57:39,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2023-08-25 14:57:39,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2023-08-25 14:57:39,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2023-08-25 14:57:39,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2023-08-25 14:57:39,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2023-08-25 14:57:39,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2023-08-25 14:57:39,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2023-08-25 14:57:39,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2023-08-25 14:57:39,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2023-08-25 14:57:39,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2023-08-25 14:57:39,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2023-08-25 14:57:39,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2023-08-25 14:57:39,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2023-08-25 14:57:39,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2023-08-25 14:57:39,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2023-08-25 14:57:39,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (18 of 43 remaining) [2023-08-25 14:57:39,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 43 remaining) [2023-08-25 14:57:39,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 43 remaining) [2023-08-25 14:57:39,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 43 remaining) [2023-08-25 14:57:39,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2023-08-25 14:57:39,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2023-08-25 14:57:39,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2023-08-25 14:57:39,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2023-08-25 14:57:39,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2023-08-25 14:57:39,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err5ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2023-08-25 14:57:39,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2023-08-25 14:57:39,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2023-08-25 14:57:39,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2023-08-25 14:57:39,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2023-08-25 14:57:39,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2023-08-25 14:57:39,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2023-08-25 14:57:39,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2023-08-25 14:57:39,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2023-08-25 14:57:39,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2023-08-25 14:57:39,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 14:57:39,397 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:57:39,401 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 14:57:39,401 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 14:57:39,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 02:57:39 BasicIcfg [2023-08-25 14:57:39,405 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 14:57:39,405 INFO L158 Benchmark]: Toolchain (without parser) took 7710.33ms. Allocated memory was 364.9MB in the beginning and 438.3MB in the end (delta: 73.4MB). Free memory was 339.1MB in the beginning and 238.3MB in the end (delta: 100.8MB). Peak memory consumption was 175.3MB. Max. memory is 16.0GB. [2023-08-25 14:57:39,405 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 364.9MB. Free memory was 341.7MB in the beginning and 341.5MB in the end (delta: 169.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 14:57:39,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.57ms. Allocated memory is still 364.9MB. Free memory was 339.1MB in the beginning and 318.5MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 14:57:39,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.27ms. Allocated memory is still 364.9MB. Free memory was 318.5MB in the beginning and 316.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 14:57:39,406 INFO L158 Benchmark]: Boogie Preprocessor took 35.27ms. Allocated memory is still 364.9MB. Free memory was 316.3MB in the beginning and 314.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 14:57:39,406 INFO L158 Benchmark]: RCFGBuilder took 646.52ms. Allocated memory is still 364.9MB. Free memory was 314.3MB in the beginning and 281.5MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-25 14:57:39,407 INFO L158 Benchmark]: TraceAbstraction took 6488.82ms. Allocated memory was 364.9MB in the beginning and 438.3MB in the end (delta: 73.4MB). Free memory was 280.7MB in the beginning and 238.3MB in the end (delta: 42.4MB). Peak memory consumption was 116.6MB. Max. memory is 16.0GB. [2023-08-25 14:57:39,408 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 364.9MB. Free memory was 341.7MB in the beginning and 341.5MB in the end (delta: 169.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 476.57ms. Allocated memory is still 364.9MB. Free memory was 339.1MB in the beginning and 318.5MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.27ms. Allocated memory is still 364.9MB. Free memory was 318.5MB in the beginning and 316.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.27ms. Allocated memory is still 364.9MB. Free memory was 316.3MB in the beginning and 314.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 646.52ms. Allocated memory is still 364.9MB. Free memory was 314.3MB in the beginning and 281.5MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 6488.82ms. Allocated memory was 364.9MB in the beginning and 438.3MB in the end (delta: 73.4MB). Free memory was 280.7MB in the beginning and 238.3MB in the end (delta: 42.4MB). Peak memory consumption was 116.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 121 PlacesBefore, 52 PlacesAfterwards, 114 TransitionsBefore, 42 TransitionsAfterwards, 4170 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 102 TotalNumberOfCompositions, 13753 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5377, independent: 5114, independent conditional: 0, independent unconditional: 5114, dependent: 263, dependent conditional: 0, dependent unconditional: 263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2192, independent: 2126, independent conditional: 0, independent unconditional: 2126, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5377, independent: 2988, independent conditional: 0, independent unconditional: 2988, dependent: 197, dependent conditional: 0, dependent unconditional: 197, unknown: 2192, unknown conditional: 0, unknown unconditional: 2192] , Statistics on independence cache: Total cache size (in pairs): 257, Positive cache size: 230, Positive conditional cache size: 0, Positive unconditional cache size: 230, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 154 locations, 43 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: 6.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 441 IncrementalHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=8, InterpolantAutomatonStates: 40, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 319 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 25 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 14:57:39,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...