/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/ldv-races/race-2_4-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:06:54,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:06:54,422 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 06:06:54,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:06:54,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:06:54,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:06:54,461 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:06:54,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:06:54,462 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:06:54,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:06:54,463 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:06:54,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:06:54,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:06:54,464 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:06:54,465 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:06:54,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:06:54,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:06:54,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:06:54,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:06:54,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:06:54,467 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:06:54,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:06:54,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:06:54,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:06:54,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:06:54,477 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:06:54,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:06:54,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:06:54,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:06:54,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:06:54,480 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:06:54,480 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:06:54,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:06:54,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:06:54,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:06:54,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:06:54,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:06:54,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:06:54,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:06:54,848 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:06:54,848 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:06:54,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-08-26 06:06:56,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:06:56,414 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:06:56,415 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-08-26 06:06:56,440 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2df000b86/c4bd20fa5de8486f8cf752653b738023/FLAGd7f94c7cb [2023-08-26 06:06:56,456 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2df000b86/c4bd20fa5de8486f8cf752653b738023 [2023-08-26 06:06:56,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:06:56,463 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:06:56,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:06:56,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:06:56,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:06:56,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:06:56" (1/1) ... [2023-08-26 06:06:56,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d99563f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:56, skipping insertion in model container [2023-08-26 06:06:56,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:06:56" (1/1) ... [2023-08-26 06:06:56,536 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:06:56,662 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-26 06:06:57,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:06:57,385 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:06:57,396 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-26 06:06:57,411 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [251] [2023-08-26 06:06:57,414 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [251] [2023-08-26 06:06:57,421 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [735] [2023-08-26 06:06:57,444 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned long [1691] [2023-08-26 06:06:57,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:06:57,574 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 06:06:57,574 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 06:06:57,574 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 06:06:57,580 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:06:57,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57 WrapperNode [2023-08-26 06:06:57,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:06:57,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:06:57,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:06:57,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:06:57,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (1/1) ... [2023-08-26 06:06:57,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (1/1) ... [2023-08-26 06:06:57,677 INFO L138 Inliner]: procedures = 469, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 246 [2023-08-26 06:06:57,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:06:57,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:06:57,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:06:57,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:06:57,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (1/1) ... [2023-08-26 06:06:57,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (1/1) ... [2023-08-26 06:06:57,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (1/1) ... [2023-08-26 06:06:57,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (1/1) ... [2023-08-26 06:06:57,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (1/1) ... [2023-08-26 06:06:57,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (1/1) ... [2023-08-26 06:06:57,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (1/1) ... [2023-08-26 06:06:57,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (1/1) ... [2023-08-26 06:06:57,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:06:57,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:06:57,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:06:57,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:06:57,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (1/1) ... [2023-08-26 06:06:57,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:06:57,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:06:57,787 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 06:06:57,792 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 06:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 06:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 06:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 06:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 06:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:06:57,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:06:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-26 06:06:57,816 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-26 06:06:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:06:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:06:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:06:57,817 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 06:06:58,059 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:06:58,061 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:06:58,567 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:06:58,699 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:06:58,699 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 06:06:58,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:06:58 BoogieIcfgContainer [2023-08-26 06:06:58,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:06:58,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:06:58,706 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:06:58,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:06:58,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:06:56" (1/3) ... [2023-08-26 06:06:58,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330af019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:06:58, skipping insertion in model container [2023-08-26 06:06:58,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:06:57" (2/3) ... [2023-08-26 06:06:58,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330af019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:06:58, skipping insertion in model container [2023-08-26 06:06:58,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:06:58" (3/3) ... [2023-08-26 06:06:58,713 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2023-08-26 06:06:58,731 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:06:58,731 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2023-08-26 06:06:58,731 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:06:58,816 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-26 06:06:58,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 257 transitions, 530 flow [2023-08-26 06:06:58,962 INFO L124 PetriNetUnfolderBase]: 14/349 cut-off events. [2023-08-26 06:06:58,962 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 06:06:58,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 349 events. 14/349 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 814 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 178. Up to 4 conditions per place. [2023-08-26 06:06:58,970 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 257 transitions, 530 flow [2023-08-26 06:06:58,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 254 transitions, 520 flow [2023-08-26 06:06:58,979 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:06:58,988 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 254 transitions, 520 flow [2023-08-26 06:06:58,990 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 254 transitions, 520 flow [2023-08-26 06:06:58,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 254 transitions, 520 flow [2023-08-26 06:06:59,114 INFO L124 PetriNetUnfolderBase]: 13/348 cut-off events. [2023-08-26 06:06:59,114 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 06:06:59,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 348 events. 13/348 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 818 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 177. Up to 4 conditions per place. [2023-08-26 06:06:59,122 INFO L119 LiptonReduction]: Number of co-enabled transitions 7752 [2023-08-26 06:07:34,949 WARN L234 SmtUtils]: Spent 8.73s on a formula simplification. DAG size of input: 188 DAG size of output: 186 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 06:07:56,065 INFO L134 LiptonReduction]: Checked pairs total: 42716 [2023-08-26 06:07:56,066 INFO L136 LiptonReduction]: Total number of compositions: 255 [2023-08-26 06:07:56,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:07:56,083 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;@6cd8904d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:07:56,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-08-26 06:07:56,085 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:07:56,085 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-26 06:07:56,085 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:07:56,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:07:56,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 06:07:56,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 06:07:56,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:07:56,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1022, now seen corresponding path program 1 times [2023-08-26 06:07:56,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:07:56,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893917066] [2023-08-26 06:07:56,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:07:56,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:07:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:07:56,303 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 06:07:56,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:07:56,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893917066] [2023-08-26 06:07:56,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893917066] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:07:56,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:07:56,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 06:07:56,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633197929] [2023-08-26 06:07:56,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:07:56,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 06:07:56,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:07:56,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 06:07:56,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 06:07:56,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 512 [2023-08-26 06:07:56,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 89 transitions, 190 flow. Second operand has 2 states, 2 states have (on average 219.5) internal successors, (439), 2 states have internal predecessors, (439), 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 06:07:56,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:07:56,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 512 [2023-08-26 06:07:56,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:07:56,872 INFO L124 PetriNetUnfolderBase]: 1011/2351 cut-off events. [2023-08-26 06:07:56,872 INFO L125 PetriNetUnfolderBase]: For 38/80 co-relation queries the response was YES. [2023-08-26 06:07:56,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4049 conditions, 2351 events. 1011/2351 cut-off events. For 38/80 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 14673 event pairs, 1010 based on Foata normal form. 74/2156 useless extension candidates. Maximal degree in co-relation 3862. Up to 1674 conditions per place. [2023-08-26 06:07:56,890 INFO L140 encePairwiseOnDemand]: 496/512 looper letters, 37 selfloop transitions, 0 changer transitions 1/72 dead transitions. [2023-08-26 06:07:56,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 72 transitions, 232 flow [2023-08-26 06:07:56,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 06:07:56,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 06:07:56,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 492 transitions. [2023-08-26 06:07:56,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48046875 [2023-08-26 06:07:56,903 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 492 transitions. [2023-08-26 06:07:56,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 492 transitions. [2023-08-26 06:07:56,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:07:56,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 492 transitions. [2023-08-26 06:07:56,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 246.0) internal successors, (492), 2 states have internal predecessors, (492), 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 06:07:56,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 512.0) internal successors, (1536), 3 states have internal predecessors, (1536), 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 06:07:56,917 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 512.0) internal successors, (1536), 3 states have internal predecessors, (1536), 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 06:07:56,919 INFO L175 Difference]: Start difference. First operand has 92 places, 89 transitions, 190 flow. Second operand 2 states and 492 transitions. [2023-08-26 06:07:56,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 72 transitions, 232 flow [2023-08-26 06:07:56,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 72 transitions, 224 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 06:07:56,925 INFO L231 Difference]: Finished difference. Result has 74 places, 71 transitions, 146 flow [2023-08-26 06:07:56,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=146, PETRI_PLACES=74, PETRI_TRANSITIONS=71} [2023-08-26 06:07:56,930 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -18 predicate places. [2023-08-26 06:07:56,931 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 71 transitions, 146 flow [2023-08-26 06:07:56,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 219.5) internal successors, (439), 2 states have internal predecessors, (439), 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 06:07:56,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:07:56,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 06:07:56,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:07:56,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 06:07:56,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:07:56,933 INFO L85 PathProgramCache]: Analyzing trace with hash 31387744, now seen corresponding path program 1 times [2023-08-26 06:07:56,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:07:56,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759540856] [2023-08-26 06:07:56,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:07:56,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:07:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:07:57,192 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 06:07:57,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:07:57,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759540856] [2023-08-26 06:07:57,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759540856] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:07:57,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:07:57,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:07:57,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504811521] [2023-08-26 06:07:57,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:07:57,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:07:57,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:07:57,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:07:57,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:07:57,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 512 [2023-08-26 06:07:57,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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 06:07:57,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:07:57,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 512 [2023-08-26 06:07:57,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:07:57,743 INFO L124 PetriNetUnfolderBase]: 951/2425 cut-off events. [2023-08-26 06:07:57,745 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 06:07:57,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4005 conditions, 2425 events. 951/2425 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 16367 event pairs, 950 based on Foata normal form. 0/2169 useless extension candidates. Maximal degree in co-relation 4002. Up to 1570 conditions per place. [2023-08-26 06:07:57,756 INFO L140 encePairwiseOnDemand]: 509/512 looper letters, 36 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2023-08-26 06:07:57,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 72 transitions, 224 flow [2023-08-26 06:07:57,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:07:57,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:07:57,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 681 transitions. [2023-08-26 06:07:57,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.443359375 [2023-08-26 06:07:57,760 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 681 transitions. [2023-08-26 06:07:57,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 681 transitions. [2023-08-26 06:07:57,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:07:57,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 681 transitions. [2023-08-26 06:07:57,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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 06:07:57,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 06:07:57,769 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 06:07:57,770 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 146 flow. Second operand 3 states and 681 transitions. [2023-08-26 06:07:57,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 72 transitions, 224 flow [2023-08-26 06:07:57,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 72 transitions, 224 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:07:57,776 INFO L231 Difference]: Finished difference. Result has 76 places, 72 transitions, 158 flow [2023-08-26 06:07:57,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=76, PETRI_TRANSITIONS=72} [2023-08-26 06:07:57,778 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2023-08-26 06:07:57,783 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 72 transitions, 158 flow [2023-08-26 06:07:57,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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 06:07:57,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:07:57,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:07:57,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:07:57,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 06:07:57,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:07:57,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1042833404, now seen corresponding path program 1 times [2023-08-26 06:07:57,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:07:57,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573142687] [2023-08-26 06:07:57,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:07:57,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:07:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:07:58,244 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 06:07:58,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:07:58,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573142687] [2023-08-26 06:07:58,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573142687] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:07:58,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:07:58,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:07:58,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404040140] [2023-08-26 06:07:58,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:07:58,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:07:58,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:07:58,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:07:58,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:07:58,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 512 [2023-08-26 06:07:58,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 72 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 145.16666666666666) internal successors, (871), 6 states have internal predecessors, (871), 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 06:07:58,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:07:58,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 512 [2023-08-26 06:07:58,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:07:59,263 INFO L124 PetriNetUnfolderBase]: 2853/4686 cut-off events. [2023-08-26 06:07:59,263 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-08-26 06:07:59,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9429 conditions, 4686 events. 2853/4686 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 23536 event pairs, 2393 based on Foata normal form. 0/4348 useless extension candidates. Maximal degree in co-relation 9424. Up to 4319 conditions per place. [2023-08-26 06:07:59,288 INFO L140 encePairwiseOnDemand]: 498/512 looper letters, 85 selfloop transitions, 31 changer transitions 0/117 dead transitions. [2023-08-26 06:07:59,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 117 transitions, 480 flow [2023-08-26 06:07:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:07:59,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:07:59,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 980 transitions. [2023-08-26 06:07:59,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3190104166666667 [2023-08-26 06:07:59,293 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 980 transitions. [2023-08-26 06:07:59,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 980 transitions. [2023-08-26 06:07:59,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:07:59,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 980 transitions. [2023-08-26 06:07:59,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 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 06:07:59,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 512.0) internal successors, (3584), 7 states have internal predecessors, (3584), 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 06:07:59,302 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 512.0) internal successors, (3584), 7 states have internal predecessors, (3584), 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 06:07:59,302 INFO L175 Difference]: Start difference. First operand has 76 places, 72 transitions, 158 flow. Second operand 6 states and 980 transitions. [2023-08-26 06:07:59,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 117 transitions, 480 flow [2023-08-26 06:07:59,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 117 transitions, 478 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:07:59,305 INFO L231 Difference]: Finished difference. Result has 85 places, 101 transitions, 362 flow [2023-08-26 06:07:59,306 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=85, PETRI_TRANSITIONS=101} [2023-08-26 06:07:59,306 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -7 predicate places. [2023-08-26 06:07:59,306 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 101 transitions, 362 flow [2023-08-26 06:07:59,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.16666666666666) internal successors, (871), 6 states have internal predecessors, (871), 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 06:07:59,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:07:59,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:07:59,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:07:59,307 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 06:07:59,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:07:59,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1273338234, now seen corresponding path program 1 times [2023-08-26 06:07:59,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:07:59,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873526276] [2023-08-26 06:07:59,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:07:59,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:07:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:07:59,508 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 06:07:59,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:07:59,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873526276] [2023-08-26 06:07:59,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873526276] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:07:59,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:07:59,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:07:59,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514838389] [2023-08-26 06:07:59,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:07:59,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:07:59,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:07:59,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:07:59,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:07:59,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 512 [2023-08-26 06:07:59,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 101 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 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 06:07:59,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:07:59,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 512 [2023-08-26 06:07:59,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:08:00,179 INFO L124 PetriNetUnfolderBase]: 1684/3594 cut-off events. [2023-08-26 06:08:00,179 INFO L125 PetriNetUnfolderBase]: For 1189/1218 co-relation queries the response was YES. [2023-08-26 06:08:00,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8106 conditions, 3594 events. 1684/3594 cut-off events. For 1189/1218 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 23978 event pairs, 893 based on Foata normal form. 3/3301 useless extension candidates. Maximal degree in co-relation 8097. Up to 2143 conditions per place. [2023-08-26 06:08:00,200 INFO L140 encePairwiseOnDemand]: 504/512 looper letters, 74 selfloop transitions, 7 changer transitions 0/118 dead transitions. [2023-08-26 06:08:00,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 118 transitions, 571 flow [2023-08-26 06:08:00,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:08:00,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:08:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 653 transitions. [2023-08-26 06:08:00,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4251302083333333 [2023-08-26 06:08:00,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 653 transitions. [2023-08-26 06:08:00,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 653 transitions. [2023-08-26 06:08:00,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:08:00,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 653 transitions. [2023-08-26 06:08:00,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.66666666666666) internal successors, (653), 3 states have internal predecessors, (653), 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 06:08:00,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 06:08:00,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 06:08:00,210 INFO L175 Difference]: Start difference. First operand has 85 places, 101 transitions, 362 flow. Second operand 3 states and 653 transitions. [2023-08-26 06:08:00,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 118 transitions, 571 flow [2023-08-26 06:08:00,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 118 transitions, 571 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:08:00,219 INFO L231 Difference]: Finished difference. Result has 89 places, 107 transitions, 424 flow [2023-08-26 06:08:00,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=89, PETRI_TRANSITIONS=107} [2023-08-26 06:08:00,220 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -3 predicate places. [2023-08-26 06:08:00,220 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 107 transitions, 424 flow [2023-08-26 06:08:00,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 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 06:08:00,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:08:00,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:08:00,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:08:00,221 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 06:08:00,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:08:00,221 INFO L85 PathProgramCache]: Analyzing trace with hash 818780293, now seen corresponding path program 1 times [2023-08-26 06:08:00,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:08:00,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031223576] [2023-08-26 06:08:00,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:08:00,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:08:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:08:00,388 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 06:08:00,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:08:00,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031223576] [2023-08-26 06:08:00,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031223576] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:08:00,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:08:00,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:08:00,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804825105] [2023-08-26 06:08:00,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:08:00,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:08:00,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:08:00,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:08:00,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:08:00,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 512 [2023-08-26 06:08:00,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 107 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 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 06:08:00,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:08:00,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 512 [2023-08-26 06:08:00,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:08:01,103 INFO L124 PetriNetUnfolderBase]: 1915/4179 cut-off events. [2023-08-26 06:08:01,103 INFO L125 PetriNetUnfolderBase]: For 2884/2915 co-relation queries the response was YES. [2023-08-26 06:08:01,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10465 conditions, 4179 events. 1915/4179 cut-off events. For 2884/2915 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 29651 event pairs, 1009 based on Foata normal form. 3/3926 useless extension candidates. Maximal degree in co-relation 10454. Up to 2383 conditions per place. [2023-08-26 06:08:01,141 INFO L140 encePairwiseOnDemand]: 504/512 looper letters, 78 selfloop transitions, 12 changer transitions 0/127 dead transitions. [2023-08-26 06:08:01,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 127 transitions, 697 flow [2023-08-26 06:08:01,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:08:01,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:08:01,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2023-08-26 06:08:01,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4244791666666667 [2023-08-26 06:08:01,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2023-08-26 06:08:01,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2023-08-26 06:08:01,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:08:01,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2023-08-26 06:08:01,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 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 06:08:01,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 06:08:01,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 06:08:01,151 INFO L175 Difference]: Start difference. First operand has 89 places, 107 transitions, 424 flow. Second operand 3 states and 652 transitions. [2023-08-26 06:08:01,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 127 transitions, 697 flow [2023-08-26 06:08:01,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 127 transitions, 673 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:08:01,161 INFO L231 Difference]: Finished difference. Result has 91 places, 117 transitions, 534 flow [2023-08-26 06:08:01,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=91, PETRI_TRANSITIONS=117} [2023-08-26 06:08:01,162 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -1 predicate places. [2023-08-26 06:08:01,163 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 117 transitions, 534 flow [2023-08-26 06:08:01,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 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 06:08:01,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:08:01,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:08:01,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 06:08:01,164 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-26 06:08:01,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:08:01,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1151127788, now seen corresponding path program 1 times [2023-08-26 06:08:01,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:08:01,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460074073] [2023-08-26 06:08:01,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:08:01,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:08:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:08:01,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 06:08:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:08:01,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 06:08:01,277 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 06:08:01,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (30 of 31 remaining) [2023-08-26 06:08:01,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2023-08-26 06:08:01,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2023-08-26 06:08:01,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2023-08-26 06:08:01,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2023-08-26 06:08:01,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2023-08-26 06:08:01,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2023-08-26 06:08:01,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONASSERT (23 of 31 remaining) [2023-08-26 06:08:01,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2023-08-26 06:08:01,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2023-08-26 06:08:01,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2023-08-26 06:08:01,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2023-08-26 06:08:01,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2023-08-26 06:08:01,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONASSERT (17 of 31 remaining) [2023-08-26 06:08:01,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2023-08-26 06:08:01,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2023-08-26 06:08:01,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONASSERT (14 of 31 remaining) [2023-08-26 06:08:01,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONASSERT (13 of 31 remaining) [2023-08-26 06:08:01,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2023-08-26 06:08:01,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONASSERT (11 of 31 remaining) [2023-08-26 06:08:01,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2023-08-26 06:08:01,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2023-08-26 06:08:01,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2023-08-26 06:08:01,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2023-08-26 06:08:01,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2023-08-26 06:08:01,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2023-08-26 06:08:01,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2023-08-26 06:08:01,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2023-08-26 06:08:01,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2023-08-26 06:08:01,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2023-08-26 06:08:01,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2023-08-26 06:08:01,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 06:08:01,290 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-26 06:08:01,296 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:08:01,296 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:08:01,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:08:01 BasicIcfg [2023-08-26 06:08:01,351 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:08:01,354 INFO L158 Benchmark]: Toolchain (without parser) took 64888.93ms. Allocated memory was 339.7MB in the beginning and 499.1MB in the end (delta: 159.4MB). Free memory was 293.7MB in the beginning and 288.2MB in the end (delta: 5.5MB). Peak memory consumption was 167.0MB. Max. memory is 16.0GB. [2023-08-26 06:08:01,354 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 339.7MB. Free memory was 317.7MB in the beginning and 317.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:08:01,354 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1113.86ms. Allocated memory is still 339.7MB. Free memory was 293.7MB in the beginning and 238.2MB in the end (delta: 55.6MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. [2023-08-26 06:08:01,354 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.55ms. Allocated memory is still 339.7MB. Free memory was 238.2MB in the beginning and 234.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 06:08:01,355 INFO L158 Benchmark]: Boogie Preprocessor took 80.29ms. Allocated memory is still 339.7MB. Free memory was 234.0MB in the beginning and 228.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-08-26 06:08:01,355 INFO L158 Benchmark]: RCFGBuilder took 944.12ms. Allocated memory is still 339.7MB. Free memory was 228.7MB in the beginning and 174.2MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. [2023-08-26 06:08:01,355 INFO L158 Benchmark]: TraceAbstraction took 62646.37ms. Allocated memory was 339.7MB in the beginning and 499.1MB in the end (delta: 159.4MB). Free memory was 173.2MB in the beginning and 288.2MB in the end (delta: -115.1MB). Peak memory consumption was 47.5MB. Max. memory is 16.0GB. [2023-08-26 06:08:01,358 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 339.7MB. Free memory was 317.7MB in the beginning and 317.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 1113.86ms. Allocated memory is still 339.7MB. Free memory was 293.7MB in the beginning and 238.2MB in the end (delta: 55.6MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 95.55ms. Allocated memory is still 339.7MB. Free memory was 238.2MB in the beginning and 234.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 80.29ms. Allocated memory is still 339.7MB. Free memory was 234.0MB in the beginning and 228.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 944.12ms. Allocated memory is still 339.7MB. Free memory was 228.7MB in the beginning and 174.2MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. * TraceAbstraction took 62646.37ms. Allocated memory was 339.7MB in the beginning and 499.1MB in the end (delta: 159.4MB). Free memory was 173.2MB in the beginning and 288.2MB in the end (delta: -115.1MB). Peak memory consumption was 47.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 251]: Unsoundness Warning unspecified type, defaulting to int C: short [251] - GenericResultAtLocation [Line: 251]: Unsoundness Warning unspecified type, defaulting to int C: short [251] - GenericResultAtLocation [Line: 735]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [735] - GenericResultAtLocation [Line: 1691]: Unsoundness Warning unspecified type, defaulting to int C: unsigned long [1691] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.1s, 251 PlacesBefore, 92 PlacesAfterwards, 254 TransitionsBefore, 89 TransitionsAfterwards, 7752 CoEnabledTransitionPairs, 9 FixpointIterations, 121 TrivialSequentialCompositions, 86 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 34 ConcurrentYvCompositions, 6 ChoiceCompositions, 255 TotalNumberOfCompositions, 42716 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8646, independent: 7343, independent conditional: 0, independent unconditional: 7343, dependent: 1303, dependent conditional: 0, dependent unconditional: 1303, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3832, independent: 3689, independent conditional: 0, independent unconditional: 3689, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8646, independent: 3654, independent conditional: 0, independent unconditional: 3654, dependent: 1160, dependent conditional: 0, dependent unconditional: 1160, unknown: 3832, unknown conditional: 0, unknown unconditional: 3832] , Statistics on independence cache: Total cache size (in pairs): 213, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 76, Negative conditional cache size: 0, Negative unconditional cache size: 76, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1671]: assertion can be violated assertion can be violated We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={6:24}, d={6:24}, data={6:0}, data={6:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=-2, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, d={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=-1, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) [L1750] COND TRUE 0 probe_ret==0 [L1751] CALL 0 my_drv_disconnect(&data) [L1721] 0 void *status; [L1723] 0 data->shared.a = 3 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, pthread_mutex_lock (&data->lock)=0, status={5:0}, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] [L1726] 0 data->shared.b = 3 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data={6:0}, data={6:0}, dev={6:24}, status={5:0}, t1={3:0}, t2={4:0}] [L1729] EXPR 0 data->shared.a [L1729] EXPR 0 data->shared.a==3 [L1729] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] CALL 0 reach_error() [L1671] COND FALSE 0 !(0) [L1671] 0 __assert_fail ("0", "race-2_4-container_of.c", 14, __extension__ __PRETTY_FUNCTION__) VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1732]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1734]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1735]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1758]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1759]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1753]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 267 locations, 31 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: 62.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 57.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 571 IncrementalHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 29 mSDtfsCounter, 571 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=534occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-26 06:08:01,383 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...