/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 05:24:53,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 05:24:53,574 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 [2023-08-26 05:24:53,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 05:24:53,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 05:24:53,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 05:24:53,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 05:24:53,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 05:24:53,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 05:24:53,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 05:24:53,616 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 05:24:53,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 05:24:53,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 05:24:53,617 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 05:24:53,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 05:24:53,618 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 05:24:53,618 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 05:24:53,618 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 05:24:53,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 05:24:53,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 05:24:53,619 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 05:24:53,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 05:24:53,619 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 05:24:53,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 05:24:53,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 05:24:53,620 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 05:24:53,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 05:24:53,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 05:24:53,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 05:24:53,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 05:24:53,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 05:24:53,622 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 05:24:53,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 05:24:53,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 05:24:53,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 05:24:53,623 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 05:24:53,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 05:24:53,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 05:24:53,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 05:24:53,957 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 05:24:53,957 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 05:24:53,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-26 05:24:55,179 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 05:24:55,405 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 05:24:55,406 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-26 05:24:55,425 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d1f84977/f73b7a94b2fd4ed8994eba88628f41db/FLAGea1bbe57c [2023-08-26 05:24:55,438 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d1f84977/f73b7a94b2fd4ed8994eba88628f41db [2023-08-26 05:24:55,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 05:24:55,441 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 05:24:55,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 05:24:55,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 05:24:55,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 05:24:55,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:55,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1a691f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55, skipping insertion in model container [2023-08-26 05:24:55,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:55,490 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 05:24:55,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 05:24:55,835 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 05:24:55,872 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 05:24:55,874 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 05:24:55,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 05:24:55,926 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 05:24:55,927 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 05:24:55,933 INFO L206 MainTranslator]: Completed translation [2023-08-26 05:24:55,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55 WrapperNode [2023-08-26 05:24:55,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 05:24:55,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 05:24:55,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 05:24:55,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 05:24:55,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:55,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:55,994 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2023-08-26 05:24:55,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 05:24:55,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 05:24:55,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 05:24:55,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 05:24:56,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:56,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:56,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:56,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:56,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:56,027 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:56,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:56,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:56,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 05:24:56,032 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 05:24:56,032 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 05:24:56,032 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 05:24:56,033 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (1/1) ... [2023-08-26 05:24:56,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 05:24:56,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 05:24:56,063 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) [2023-08-26 05:24:56,083 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 [2023-08-26 05:24:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 05:24:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 05:24:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 05:24:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 05:24:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 05:24:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-26 05:24:56,102 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-26 05:24:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-26 05:24:56,102 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-26 05:24:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-26 05:24:56,102 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-26 05:24:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 05:24:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 05:24:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 05:24:56,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 05:24:56,107 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 05:24:56,216 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 05:24:56,218 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 05:24:56,428 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 05:24:56,570 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 05:24:56,570 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 05:24:56,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 05:24:56 BoogieIcfgContainer [2023-08-26 05:24:56,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 05:24:56,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 05:24:56,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 05:24:56,577 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 05:24:56,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 05:24:55" (1/3) ... [2023-08-26 05:24:56,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffebde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 05:24:56, skipping insertion in model container [2023-08-26 05:24:56,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:24:55" (2/3) ... [2023-08-26 05:24:56,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffebde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 05:24:56, skipping insertion in model container [2023-08-26 05:24:56,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 05:24:56" (3/3) ... [2023-08-26 05:24:56,580 INFO L112 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-26 05:24:56,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 05:24:56,598 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2023-08-26 05:24:56,599 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 05:24:56,664 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 05:24:56,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 117 transitions, 249 flow [2023-08-26 05:24:56,772 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-26 05:24:56,773 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 05:24:56,778 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 132 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. [2023-08-26 05:24:56,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 117 transitions, 249 flow [2023-08-26 05:24:56,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 114 transitions, 237 flow [2023-08-26 05:24:56,786 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 05:24:56,794 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-26 05:24:56,795 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-26 05:24:56,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 237 flow [2023-08-26 05:24:56,827 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-26 05:24:56,828 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 05:24:56,833 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 132 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. [2023-08-26 05:24:56,836 INFO L119 LiptonReduction]: Number of co-enabled transitions 4142 [2023-08-26 05:25:01,424 INFO L134 LiptonReduction]: Checked pairs total: 14514 [2023-08-26 05:25:01,424 INFO L136 LiptonReduction]: Total number of compositions: 102 [2023-08-26 05:25:01,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 05:25:01,453 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;@44d1d30a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 05:25:01,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2023-08-26 05:25:01,456 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 05:25:01,456 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-26 05:25:01,456 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 05:25:01,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:25:01,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 05:25:01,457 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 05:25:01,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:25:01,461 INFO L85 PathProgramCache]: Analyzing trace with hash 607463, now seen corresponding path program 1 times [2023-08-26 05:25:01,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:25:01,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783769102] [2023-08-26 05:25:01,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:25:01,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:25:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:25:01,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:25:01,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:25:01,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783769102] [2023-08-26 05:25:01,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783769102] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:25:01,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:25:01,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 05:25:01,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812483602] [2023-08-26 05:25:01,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:25:01,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 05:25:01,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:25:01,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 05:25:01,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 05:25:01,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 219 [2023-08-26 05:25:01,688 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) [2023-08-26 05:25:01,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:25:01,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 219 [2023-08-26 05:25:01,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:25:01,904 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-26 05:25:01,904 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-26 05:25:01,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3170 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. [2023-08-26 05:25:01,914 INFO L140 encePairwiseOnDemand]: 195/219 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-26 05:25:01,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-26 05:25:01,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 05:25:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 05:25:01,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-08-26 05:25:01,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4474885844748858 [2023-08-26 05:25:01,926 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-08-26 05:25:01,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-08-26 05:25:01,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:25:01,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-08-26 05:25:01,935 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) [2023-08-26 05:25:01,939 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) [2023-08-26 05:25:01,939 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) [2023-08-26 05:25:01,941 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 93 flow. Second operand 2 states and 196 transitions. [2023-08-26 05:25:01,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-26 05:25:01,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 05:25:01,945 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-26 05:25:01,946 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} [2023-08-26 05:25:01,949 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -26 predicate places. [2023-08-26 05:25:01,949 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-26 05:25:01,950 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) [2023-08-26 05:25:01,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:25:01,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:25:01,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 05:25:01,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 05:25:01,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:25:01,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1513808422, now seen corresponding path program 1 times [2023-08-26 05:25:01,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:25:01,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787158928] [2023-08-26 05:25:01,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:25:01,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:25:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:25:02,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:25:02,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:25:02,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787158928] [2023-08-26 05:25:02,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787158928] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:25:02,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:25:02,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 05:25:02,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322558787] [2023-08-26 05:25:02,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:25:02,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 05:25:02,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:25:02,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 05:25:02,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 05:25:02,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 219 [2023-08-26 05:25:02,123 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) [2023-08-26 05:25:02,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:25:02,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 219 [2023-08-26 05:25:02,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:25:02,220 INFO L124 PetriNetUnfolderBase]: 383/600 cut-off events. [2023-08-26 05:25:02,220 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 05:25:02,221 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 2267 event pairs, 77 based on Foata normal form. 16/616 useless extension candidates. Maximal degree in co-relation 1242. Up to 507 conditions per place. [2023-08-26 05:25:02,224 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 24 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-26 05:25:02,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 112 flow [2023-08-26 05:25:02,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 05:25:02,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 05:25:02,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-26 05:25:02,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3881278538812785 [2023-08-26 05:25:02,233 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-26 05:25:02,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-26 05:25:02,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:25:02,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-26 05:25:02,236 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) [2023-08-26 05:25:02,239 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) [2023-08-26 05:25:02,239 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) [2023-08-26 05:25:02,239 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 255 transitions. [2023-08-26 05:25:02,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 112 flow [2023-08-26 05:25:02,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 05:25:02,241 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 48 flow [2023-08-26 05:25:02,241 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} [2023-08-26 05:25:02,242 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2023-08-26 05:25:02,243 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 48 flow [2023-08-26 05:25:02,244 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) [2023-08-26 05:25:02,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:25:02,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:25:02,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 05:25:02,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 05:25:02,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:25:02,245 INFO L85 PathProgramCache]: Analyzing trace with hash 316577929, now seen corresponding path program 1 times [2023-08-26 05:25:02,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:25:02,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533106226] [2023-08-26 05:25:02,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:25:02,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:25:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:25:02,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:25:02,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:25:02,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533106226] [2023-08-26 05:25:02,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533106226] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:25:02,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:25:02,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 05:25:02,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376615463] [2023-08-26 05:25:02,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:25:02,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 05:25:02,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:25:02,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 05:25:02,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 05:25:02,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 219 [2023-08-26 05:25:02,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2023-08-26 05:25:02,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:25:02,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 219 [2023-08-26 05:25:02,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:25:02,413 INFO L124 PetriNetUnfolderBase]: 343/544 cut-off events. [2023-08-26 05:25:02,413 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2023-08-26 05:25:02,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 544 events. 343/544 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1917 event pairs, 265 based on Foata normal form. 16/560 useless extension candidates. Maximal degree in co-relation 1243. Up to 427 conditions per place. [2023-08-26 05:25:02,417 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 24 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-26 05:25:02,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 26 transitions, 120 flow [2023-08-26 05:25:02,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 05:25:02,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 05:25:02,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-26 05:25:02,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3881278538812785 [2023-08-26 05:25:02,418 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-26 05:25:02,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-26 05:25:02,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:25:02,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-26 05:25:02,420 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) [2023-08-26 05:25:02,422 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) [2023-08-26 05:25:02,423 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) [2023-08-26 05:25:02,423 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 48 flow. Second operand 3 states and 255 transitions. [2023-08-26 05:25:02,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 26 transitions, 120 flow [2023-08-26 05:25:02,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 26 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 05:25:02,426 INFO L231 Difference]: Finished difference. Result has 29 places, 17 transitions, 52 flow [2023-08-26 05:25:02,426 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} [2023-08-26 05:25:02,427 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -23 predicate places. [2023-08-26 05:25:02,427 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 17 transitions, 52 flow [2023-08-26 05:25:02,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2023-08-26 05:25:02,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:25:02,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:25:02,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 05:25:02,432 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 05:25:02,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:25:02,432 INFO L85 PathProgramCache]: Analyzing trace with hash 204579899, now seen corresponding path program 1 times [2023-08-26 05:25:02,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:25:02,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37651794] [2023-08-26 05:25:02,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:25:02,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:25:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:25:02,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:25:02,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:25:02,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37651794] [2023-08-26 05:25:02,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37651794] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:25:02,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:25:02,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 05:25:02,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637060563] [2023-08-26 05:25:02,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:25:02,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 05:25:02,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:25:02,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 05:25:02,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 05:25:02,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 219 [2023-08-26 05:25:02,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 17 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-08-26 05:25:02,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:25:02,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 219 [2023-08-26 05:25:02,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:25:02,534 INFO L124 PetriNetUnfolderBase]: 325/518 cut-off events. [2023-08-26 05:25:02,534 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2023-08-26 05:25:02,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 518 events. 325/518 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1771 event pairs, 103 based on Foata normal form. 8/526 useless extension candidates. Maximal degree in co-relation 1286. Up to 359 conditions per place. [2023-08-26 05:25:02,537 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-26 05:25:02,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 121 flow [2023-08-26 05:25:02,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 05:25:02,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 05:25:02,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2023-08-26 05:25:02,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3850837138508371 [2023-08-26 05:25:02,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2023-08-26 05:25:02,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2023-08-26 05:25:02,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:25:02,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2023-08-26 05:25:02,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2023-08-26 05:25:02,541 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) [2023-08-26 05:25:02,541 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) [2023-08-26 05:25:02,541 INFO L175 Difference]: Start difference. First operand has 29 places, 17 transitions, 52 flow. Second operand 3 states and 253 transitions. [2023-08-26 05:25:02,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 121 flow [2023-08-26 05:25:02,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 113 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 05:25:02,543 INFO L231 Difference]: Finished difference. Result has 30 places, 17 transitions, 56 flow [2023-08-26 05:25:02,543 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} [2023-08-26 05:25:02,543 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -22 predicate places. [2023-08-26 05:25:02,544 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 17 transitions, 56 flow [2023-08-26 05:25:02,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-08-26 05:25:02,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:25:02,544 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:25:02,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 05:25:02,544 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 05:25:02,545 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:25:02,545 INFO L85 PathProgramCache]: Analyzing trace with hash 467193051, now seen corresponding path program 1 times [2023-08-26 05:25:02,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:25:02,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107225179] [2023-08-26 05:25:02,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:25:02,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:25:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:25:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:25:02,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:25:02,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107225179] [2023-08-26 05:25:02,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107225179] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:25:02,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:25:02,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 05:25:02,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466955130] [2023-08-26 05:25:02,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:25:02,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 05:25:02,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:25:02,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 05:25:02,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 05:25:02,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 219 [2023-08-26 05:25:02,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 17 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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) [2023-08-26 05:25:02,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:25:02,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 219 [2023-08-26 05:25:02,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:25:02,756 INFO L124 PetriNetUnfolderBase]: 333/557 cut-off events. [2023-08-26 05:25:02,757 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES. [2023-08-26 05:25:02,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 557 events. 333/557 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2142 event pairs, 112 based on Foata normal form. 24/581 useless extension candidates. Maximal degree in co-relation 1383. Up to 222 conditions per place. [2023-08-26 05:25:02,760 INFO L140 encePairwiseOnDemand]: 213/219 looper letters, 34 selfloop transitions, 5 changer transitions 1/40 dead transitions. [2023-08-26 05:25:02,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 198 flow [2023-08-26 05:25:02,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 05:25:02,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 05:25:02,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2023-08-26 05:25:02,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3858447488584475 [2023-08-26 05:25:02,761 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 338 transitions. [2023-08-26 05:25:02,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 338 transitions. [2023-08-26 05:25:02,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:25:02,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 338 transitions. [2023-08-26 05:25:02,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2023-08-26 05:25:02,764 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) [2023-08-26 05:25:02,765 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) [2023-08-26 05:25:02,765 INFO L175 Difference]: Start difference. First operand has 30 places, 17 transitions, 56 flow. Second operand 4 states and 338 transitions. [2023-08-26 05:25:02,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 198 flow [2023-08-26 05:25:02,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 40 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 05:25:02,767 INFO L231 Difference]: Finished difference. Result has 33 places, 20 transitions, 86 flow [2023-08-26 05:25:02,767 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2023-08-26 05:25:02,768 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -19 predicate places. [2023-08-26 05:25:02,768 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 86 flow [2023-08-26 05:25:02,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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) [2023-08-26 05:25:02,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:25:02,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:25:02,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 05:25:02,769 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 05:25:02,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:25:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1597521092, now seen corresponding path program 1 times [2023-08-26 05:25:02,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:25:02,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006110139] [2023-08-26 05:25:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:25:02,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:25:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:25:02,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:25:02,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:25:02,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006110139] [2023-08-26 05:25:02,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006110139] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:25:02,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:25:02,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 05:25:02,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169494396] [2023-08-26 05:25:02,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:25:02,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 05:25:02,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:25:02,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 05:25:02,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 05:25:02,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 219 [2023-08-26 05:25:02,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 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) [2023-08-26 05:25:02,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:25:02,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 219 [2023-08-26 05:25:02,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:25:02,992 INFO L124 PetriNetUnfolderBase]: 203/362 cut-off events. [2023-08-26 05:25:02,993 INFO L125 PetriNetUnfolderBase]: For 327/327 co-relation queries the response was YES. [2023-08-26 05:25:02,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 362 events. 203/362 cut-off events. For 327/327 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1291 event pairs, 56 based on Foata normal form. 18/380 useless extension candidates. Maximal degree in co-relation 1098. Up to 162 conditions per place. [2023-08-26 05:25:02,995 INFO L140 encePairwiseOnDemand]: 213/219 looper letters, 42 selfloop transitions, 8 changer transitions 1/51 dead transitions. [2023-08-26 05:25:02,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 51 transitions, 283 flow [2023-08-26 05:25:02,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 05:25:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 05:25:02,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 423 transitions. [2023-08-26 05:25:02,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3863013698630137 [2023-08-26 05:25:02,997 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 423 transitions. [2023-08-26 05:25:02,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 423 transitions. [2023-08-26 05:25:02,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:25:02,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 423 transitions. [2023-08-26 05:25:02,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 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) [2023-08-26 05:25:03,001 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) [2023-08-26 05:25:03,001 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) [2023-08-26 05:25:03,001 INFO L175 Difference]: Start difference. First operand has 33 places, 20 transitions, 86 flow. Second operand 5 states and 423 transitions. [2023-08-26 05:25:03,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 51 transitions, 283 flow [2023-08-26 05:25:03,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 51 transitions, 273 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-26 05:25:03,005 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 126 flow [2023-08-26 05:25:03,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2023-08-26 05:25:03,008 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -15 predicate places. [2023-08-26 05:25:03,008 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 126 flow [2023-08-26 05:25:03,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 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) [2023-08-26 05:25:03,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:25:03,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:25:03,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 05:25:03,009 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 05:25:03,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:25:03,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1853970400, now seen corresponding path program 1 times [2023-08-26 05:25:03,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:25:03,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978765941] [2023-08-26 05:25:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:25:03,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:25:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:25:03,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:25:03,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:25:03,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978765941] [2023-08-26 05:25:03,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978765941] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:25:03,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:25:03,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 05:25:03,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54896294] [2023-08-26 05:25:03,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:25:03,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 05:25:03,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:25:03,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 05:25:03,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-26 05:25:03,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 219 [2023-08-26 05:25:03,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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) [2023-08-26 05:25:03,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:25:03,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 219 [2023-08-26 05:25:03,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:25:03,280 INFO L124 PetriNetUnfolderBase]: 143/260 cut-off events. [2023-08-26 05:25:03,280 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2023-08-26 05:25:03,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 868 conditions, 260 events. 143/260 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 847 event pairs, 56 based on Foata normal form. 7/267 useless extension candidates. Maximal degree in co-relation 858. Up to 108 conditions per place. [2023-08-26 05:25:03,283 INFO L140 encePairwiseOnDemand]: 213/219 looper letters, 30 selfloop transitions, 11 changer transitions 1/42 dead transitions. [2023-08-26 05:25:03,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 42 transitions, 266 flow [2023-08-26 05:25:03,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 05:25:03,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 05:25:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 488 transitions. [2023-08-26 05:25:03,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3713850837138508 [2023-08-26 05:25:03,285 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 488 transitions. [2023-08-26 05:25:03,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 488 transitions. [2023-08-26 05:25:03,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:25:03,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 488 transitions. [2023-08-26 05:25:03,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.33333333333333) internal successors, (488), 6 states have internal predecessors, (488), 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) [2023-08-26 05:25:03,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 219.0) internal successors, (1533), 7 states have internal predecessors, (1533), 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) [2023-08-26 05:25:03,288 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 219.0) internal successors, (1533), 7 states have internal predecessors, (1533), 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) [2023-08-26 05:25:03,288 INFO L175 Difference]: Start difference. First operand has 37 places, 23 transitions, 126 flow. Second operand 6 states and 488 transitions. [2023-08-26 05:25:03,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 42 transitions, 266 flow [2023-08-26 05:25:03,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 241 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-26 05:25:03,293 INFO L231 Difference]: Finished difference. Result has 40 places, 23 transitions, 140 flow [2023-08-26 05:25:03,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=140, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2023-08-26 05:25:03,294 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -12 predicate places. [2023-08-26 05:25:03,294 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 140 flow [2023-08-26 05:25:03,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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) [2023-08-26 05:25:03,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:25:03,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:25:03,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 05:25:03,297 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 05:25:03,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:25:03,297 INFO L85 PathProgramCache]: Analyzing trace with hash -299058031, now seen corresponding path program 1 times [2023-08-26 05:25:03,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:25:03,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217840963] [2023-08-26 05:25:03,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:25:03,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:25:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:25:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:25:03,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:25:03,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217840963] [2023-08-26 05:25:03,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217840963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:25:03,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:25:03,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 05:25:03,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182471644] [2023-08-26 05:25:03,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:25:03,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 05:25:03,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:25:03,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 05:25:03,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 05:25:03,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 219 [2023-08-26 05:25:03,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 23 transitions, 140 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) [2023-08-26 05:25:03,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:25:03,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 219 [2023-08-26 05:25:03,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:25:03,434 INFO L124 PetriNetUnfolderBase]: 157/289 cut-off events. [2023-08-26 05:25:03,435 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2023-08-26 05:25:03,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1002 conditions, 289 events. 157/289 cut-off events. For 402/402 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1100 event pairs, 15 based on Foata normal form. 1/290 useless extension candidates. Maximal degree in co-relation 991. Up to 188 conditions per place. [2023-08-26 05:25:03,436 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 28 selfloop transitions, 1 changer transitions 19/48 dead transitions. [2023-08-26 05:25:03,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 385 flow [2023-08-26 05:25:03,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 05:25:03,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 05:25:03,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2023-08-26 05:25:03,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3824200913242009 [2023-08-26 05:25:03,440 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 335 transitions. [2023-08-26 05:25:03,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 335 transitions. [2023-08-26 05:25:03,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:25:03,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 335 transitions. [2023-08-26 05:25:03,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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) [2023-08-26 05:25:03,442 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) [2023-08-26 05:25:03,443 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) [2023-08-26 05:25:03,443 INFO L175 Difference]: Start difference. First operand has 40 places, 23 transitions, 140 flow. Second operand 4 states and 335 transitions. [2023-08-26 05:25:03,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 385 flow [2023-08-26 05:25:03,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 48 transitions, 245 flow, removed 19 selfloop flow, removed 12 redundant places. [2023-08-26 05:25:03,446 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 77 flow [2023-08-26 05:25:03,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=28, 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=77, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2023-08-26 05:25:03,448 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -19 predicate places. [2023-08-26 05:25:03,448 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 77 flow [2023-08-26 05:25:03,449 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) [2023-08-26 05:25:03,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:25:03,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:25:03,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 05:25:03,449 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 05:25:03,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:25:03,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1366500235, now seen corresponding path program 2 times [2023-08-26 05:25:03,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:25:03,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772000627] [2023-08-26 05:25:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:25:03,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:25:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:25:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:25:03,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:25:03,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772000627] [2023-08-26 05:25:03,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772000627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:25:03,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:25:03,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 05:25:03,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94525859] [2023-08-26 05:25:03,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:25:03,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 05:25:03,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:25:03,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 05:25:03,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 05:25:03,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 219 [2023-08-26 05:25:03,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 77 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) [2023-08-26 05:25:03,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:25:03,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 219 [2023-08-26 05:25:03,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:25:03,579 INFO L124 PetriNetUnfolderBase]: 139/271 cut-off events. [2023-08-26 05:25:03,579 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2023-08-26 05:25:03,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 271 events. 139/271 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 989 event pairs, 51 based on Foata normal form. 1/272 useless extension candidates. Maximal degree in co-relation 698. Up to 111 conditions per place. [2023-08-26 05:25:03,580 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 26 selfloop transitions, 1 changer transitions 19/46 dead transitions. [2023-08-26 05:25:03,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 46 transitions, 248 flow [2023-08-26 05:25:03,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 05:25:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 05:25:03,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2023-08-26 05:25:03,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3801369863013699 [2023-08-26 05:25:03,582 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2023-08-26 05:25:03,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2023-08-26 05:25:03,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:25:03,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2023-08-26 05:25:03,583 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) [2023-08-26 05:25:03,585 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) [2023-08-26 05:25:03,585 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) [2023-08-26 05:25:03,585 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 77 flow. Second operand 4 states and 333 transitions. [2023-08-26 05:25:03,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 46 transitions, 248 flow [2023-08-26 05:25:03,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 46 transitions, 244 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-26 05:25:03,587 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 81 flow [2023-08-26 05:25:03,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, 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=81, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-08-26 05:25:03,588 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -17 predicate places. [2023-08-26 05:25:03,588 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 81 flow [2023-08-26 05:25:03,588 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) [2023-08-26 05:25:03,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:25:03,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:25:03,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 05:25:03,589 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 05:25:03,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:25:03,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1604096325, now seen corresponding path program 3 times [2023-08-26 05:25:03,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:25:03,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206334675] [2023-08-26 05:25:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:25:03,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:25:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:25:03,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:25:03,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:25:03,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206334675] [2023-08-26 05:25:03,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206334675] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:25:03,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:25:03,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 05:25:03,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350827432] [2023-08-26 05:25:03,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:25:03,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 05:25:03,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:25:03,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 05:25:03,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 05:25:03,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 219 [2023-08-26 05:25:03,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 81 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) [2023-08-26 05:25:03,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:25:03,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 219 [2023-08-26 05:25:03,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:25:03,715 INFO L124 PetriNetUnfolderBase]: 141/285 cut-off events. [2023-08-26 05:25:03,715 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2023-08-26 05:25:03,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 285 events. 141/285 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1139 event pairs, 64 based on Foata normal form. 1/286 useless extension candidates. Maximal degree in co-relation 786. Up to 160 conditions per place. [2023-08-26 05:25:03,717 INFO L140 encePairwiseOnDemand]: 215/219 looper letters, 25 selfloop transitions, 2 changer transitions 27/54 dead transitions. [2023-08-26 05:25:03,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 54 transitions, 297 flow [2023-08-26 05:25:03,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 05:25:03,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 05:25:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 414 transitions. [2023-08-26 05:25:03,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3780821917808219 [2023-08-26 05:25:03,718 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 414 transitions. [2023-08-26 05:25:03,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 414 transitions. [2023-08-26 05:25:03,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:25:03,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 414 transitions. [2023-08-26 05:25:03,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.8) internal successors, (414), 5 states have internal predecessors, (414), 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) [2023-08-26 05:25:03,721 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) [2023-08-26 05:25:03,721 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) [2023-08-26 05:25:03,722 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 81 flow. Second operand 5 states and 414 transitions. [2023-08-26 05:25:03,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 54 transitions, 297 flow [2023-08-26 05:25:03,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 54 transitions, 293 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-26 05:25:03,723 INFO L231 Difference]: Finished difference. Result has 38 places, 23 transitions, 88 flow [2023-08-26 05:25:03,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=32, 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=88, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2023-08-26 05:25:03,724 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -14 predicate places. [2023-08-26 05:25:03,724 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 88 flow [2023-08-26 05:25:03,724 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) [2023-08-26 05:25:03,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:25:03,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:25:03,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 05:25:03,725 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-26 05:25:03,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:25:03,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1848038087, now seen corresponding path program 4 times [2023-08-26 05:25:03,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:25:03,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960196424] [2023-08-26 05:25:03,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:25:03,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:25:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:25:03,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:25:03,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:25:03,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960196424] [2023-08-26 05:25:03,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960196424] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:25:03,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:25:03,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 05:25:03,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632044434] [2023-08-26 05:25:03,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:25:03,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 05:25:03,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:25:03,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 05:25:03,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 05:25:03,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 219 [2023-08-26 05:25:03,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 88 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) [2023-08-26 05:25:03,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:25:03,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 219 [2023-08-26 05:25:03,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:25:03,817 INFO L124 PetriNetUnfolderBase]: 118/248 cut-off events. [2023-08-26 05:25:03,817 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2023-08-26 05:25:03,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 248 events. 118/248 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1004 event pairs, 20 based on Foata normal form. 1/249 useless extension candidates. Maximal degree in co-relation 784. Up to 148 conditions per place. [2023-08-26 05:25:03,818 INFO L140 encePairwiseOnDemand]: 215/219 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2023-08-26 05:25:03,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 234 flow [2023-08-26 05:25:03,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 05:25:03,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 05:25:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2023-08-26 05:25:03,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3767123287671233 [2023-08-26 05:25:03,819 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 330 transitions. [2023-08-26 05:25:03,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 330 transitions. [2023-08-26 05:25:03,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:25:03,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 330 transitions. [2023-08-26 05:25:03,820 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) [2023-08-26 05:25:03,822 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) [2023-08-26 05:25:03,822 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) [2023-08-26 05:25:03,822 INFO L175 Difference]: Start difference. First operand has 38 places, 23 transitions, 88 flow. Second operand 4 states and 330 transitions. [2023-08-26 05:25:03,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 234 flow [2023-08-26 05:25:03,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 228 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 05:25:03,823 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-26 05:25:03,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, 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=36, PETRI_TRANSITIONS=0} [2023-08-26 05:25:03,824 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -16 predicate places. [2023-08-26 05:25:03,824 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-26 05:25:03,824 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) [2023-08-26 05:25:03,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (42 of 43 remaining) [2023-08-26 05:25:03,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2023-08-26 05:25:03,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2023-08-26 05:25:03,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2023-08-26 05:25:03,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2023-08-26 05:25:03,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2023-08-26 05:25:03,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (36 of 43 remaining) [2023-08-26 05:25:03,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2023-08-26 05:25:03,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2023-08-26 05:25:03,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2023-08-26 05:25:03,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2023-08-26 05:25:03,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2023-08-26 05:25:03,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2023-08-26 05:25:03,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2023-08-26 05:25:03,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2023-08-26 05:25:03,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2023-08-26 05:25:03,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2023-08-26 05:25:03,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2023-08-26 05:25:03,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2023-08-26 05:25:03,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2023-08-26 05:25:03,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2023-08-26 05:25:03,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2023-08-26 05:25:03,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2023-08-26 05:25:03,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2023-08-26 05:25:03,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (18 of 43 remaining) [2023-08-26 05:25:03,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 43 remaining) [2023-08-26 05:25:03,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 43 remaining) [2023-08-26 05:25:03,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 43 remaining) [2023-08-26 05:25:03,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2023-08-26 05:25:03,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2023-08-26 05:25:03,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2023-08-26 05:25:03,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2023-08-26 05:25:03,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2023-08-26 05:25:03,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2023-08-26 05:25:03,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2023-08-26 05:25:03,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2023-08-26 05:25:03,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2023-08-26 05:25:03,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2023-08-26 05:25:03,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2023-08-26 05:25:03,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2023-08-26 05:25:03,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2023-08-26 05:25:03,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2023-08-26 05:25:03,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2023-08-26 05:25:03,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 05:25:03,832 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:25:03,836 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 05:25:03,836 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 05:25:03,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 05:25:03 BasicIcfg [2023-08-26 05:25:03,839 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 05:25:03,839 INFO L158 Benchmark]: Toolchain (without parser) took 8398.79ms. Allocated memory was 406.8MB in the beginning and 488.6MB in the end (delta: 81.8MB). Free memory was 362.2MB in the beginning and 267.2MB in the end (delta: 95.0MB). Peak memory consumption was 177.8MB. Max. memory is 16.0GB. [2023-08-26 05:25:03,840 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 406.8MB. Free memory was 384.0MB in the beginning and 384.0MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 05:25:03,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.35ms. Allocated memory is still 406.8MB. Free memory was 362.2MB in the beginning and 341.2MB in the end (delta: 21.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 05:25:03,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.91ms. Allocated memory is still 406.8MB. Free memory was 341.2MB in the beginning and 339.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 05:25:03,840 INFO L158 Benchmark]: Boogie Preprocessor took 35.69ms. Allocated memory is still 406.8MB. Free memory was 339.1MB in the beginning and 337.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 05:25:03,841 INFO L158 Benchmark]: RCFGBuilder took 540.21ms. Allocated memory is still 406.8MB. Free memory was 337.0MB in the beginning and 304.5MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-26 05:25:03,841 INFO L158 Benchmark]: TraceAbstraction took 7264.64ms. Allocated memory was 406.8MB in the beginning and 488.6MB in the end (delta: 81.8MB). Free memory was 303.5MB in the beginning and 267.2MB in the end (delta: 36.3MB). Peak memory consumption was 121.2MB. Max. memory is 16.0GB. [2023-08-26 05:25:03,842 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 406.8MB. Free memory was 384.0MB in the beginning and 384.0MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 492.35ms. Allocated memory is still 406.8MB. Free memory was 362.2MB in the beginning and 341.2MB in the end (delta: 21.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.91ms. Allocated memory is still 406.8MB. Free memory was 341.2MB in the beginning and 339.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.69ms. Allocated memory is still 406.8MB. Free memory was 339.1MB in the beginning and 337.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 540.21ms. Allocated memory is still 406.8MB. Free memory was 337.0MB in the beginning and 304.5MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * TraceAbstraction took 7264.64ms. Allocated memory was 406.8MB in the beginning and 488.6MB in the end (delta: 81.8MB). Free memory was 303.5MB in the beginning and 267.2MB in the end (delta: 36.3MB). Peak memory consumption was 121.2MB. 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: 4.6s, 121 PlacesBefore, 52 PlacesAfterwards, 114 TransitionsBefore, 42 TransitionsAfterwards, 4142 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 68 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 102 TotalNumberOfCompositions, 14514 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6046, independent: 5760, independent conditional: 0, independent unconditional: 5760, dependent: 286, dependent conditional: 0, dependent unconditional: 286, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2189, independent: 2117, independent conditional: 0, independent unconditional: 2117, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6046, independent: 3643, independent conditional: 0, independent unconditional: 3643, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 2189, unknown conditional: 0, unknown unconditional: 2189] , Statistics on independence cache: Total cache size (in pairs): 334, Positive cache size: 308, Positive conditional cache size: 0, Positive unconditional cache size: 308, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, 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: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: 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: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 789]: 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: 793]: 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: 793]: 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: 795]: 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: 7.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 215 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 522 IncrementalHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 0 mSDtfsCounter, 522 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=7, InterpolantAutomatonStates: 43, 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, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 346 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! [2023-08-26 05:25:03,863 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...