/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 -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_5-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 02:28:03,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 02:28:03,120 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 02:28:03,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 02:28:03,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 02:28:03,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 02:28:03,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 02:28:03,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 02:28:03,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 02:28:03,139 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 02:28:03,139 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 02:28:03,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 02:28:03,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 02:28:03,139 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 02:28:03,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 02:28:03,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 02:28:03,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 02:28:03,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 02:28:03,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 02:28:03,141 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 02:28:03,141 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 02:28:03,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 02:28:03,142 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 02:28:03,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 02:28:03,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 02:28:03,142 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 02:28:03,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 02:28:03,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:28:03,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 02:28:03,143 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 02:28:03,143 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 02:28:03,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 02:28:03,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 02:28:03,144 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 02:28:03,144 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 02:28:03,145 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 02:28:03,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 02:28:03,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 02:28:03,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 02:28:03,422 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 02:28:03,424 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 02:28:03,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_5-container_of.i [2023-08-25 02:28:04,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 02:28:04,822 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 02:28:04,823 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_5-container_of.i [2023-08-25 02:28:04,839 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed33f297e/8d0350217bc6423baa72815871242ada/FLAGcf8a7e1b2 [2023-08-25 02:28:04,848 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed33f297e/8d0350217bc6423baa72815871242ada [2023-08-25 02:28:04,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 02:28:04,850 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 02:28:04,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 02:28:04,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 02:28:04,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 02:28:04,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:28:04" (1/1) ... [2023-08-25 02:28:04,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e4e73c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:04, skipping insertion in model container [2023-08-25 02:28:04,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:28:04" (1/1) ... [2023-08-25 02:28:04,892 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 02:28:05,015 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-25 02:28:05,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:28:05,460 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 02:28:05,469 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-25 02:28:05,480 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [251] [2023-08-25 02:28:05,481 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [251] [2023-08-25 02:28:05,486 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [735] [2023-08-25 02:28:05,499 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned long [1691] [2023-08-25 02:28:05,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:28:05,629 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:28:05,630 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:28:05,630 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:28:05,634 INFO L206 MainTranslator]: Completed translation [2023-08-25 02:28:05,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05 WrapperNode [2023-08-25 02:28:05,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 02:28:05,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 02:28:05,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 02:28:05,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 02:28:05,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (1/1) ... [2023-08-25 02:28:05,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (1/1) ... [2023-08-25 02:28:05,714 INFO L138 Inliner]: procedures = 469, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 246 [2023-08-25 02:28:05,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 02:28:05,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 02:28:05,715 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 02:28:05,715 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 02:28:05,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (1/1) ... [2023-08-25 02:28:05,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (1/1) ... [2023-08-25 02:28:05,727 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (1/1) ... [2023-08-25 02:28:05,727 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (1/1) ... [2023-08-25 02:28:05,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (1/1) ... [2023-08-25 02:28:05,745 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (1/1) ... [2023-08-25 02:28:05,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (1/1) ... [2023-08-25 02:28:05,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (1/1) ... [2023-08-25 02:28:05,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 02:28:05,755 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 02:28:05,755 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 02:28:05,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 02:28:05,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (1/1) ... [2023-08-25 02:28:05,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:28:05,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 02:28:05,787 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) [2023-08-25 02:28:05,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 02:28:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 02:28:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 02:28:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 02:28:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 02:28:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 02:28:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 02:28:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 02:28:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 02:28:05,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 02:28:05,811 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-25 02:28:05,811 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-25 02:28:05,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 02:28:05,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 02:28:05,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 02:28:05,812 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 02:28:06,030 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 02:28:06,031 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 02:28:06,268 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 02:28:06,351 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 02:28:06,351 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 02:28:06,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:28:06 BoogieIcfgContainer [2023-08-25 02:28:06,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 02:28:06,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 02:28:06,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 02:28:06,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 02:28:06,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:28:04" (1/3) ... [2023-08-25 02:28:06,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f165a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:28:06, skipping insertion in model container [2023-08-25 02:28:06,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:28:05" (2/3) ... [2023-08-25 02:28:06,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f165a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:28:06, skipping insertion in model container [2023-08-25 02:28:06,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:28:06" (3/3) ... [2023-08-25 02:28:06,361 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2023-08-25 02:28:06,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 02:28:06,371 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2023-08-25 02:28:06,372 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 02:28:06,425 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 02:28:06,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 257 transitions, 530 flow [2023-08-25 02:28:06,558 INFO L124 PetriNetUnfolderBase]: 14/339 cut-off events. [2023-08-25 02:28:06,558 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 02:28:06,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 339 events. 14/339 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 743 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 168. Up to 4 conditions per place. [2023-08-25 02:28:06,565 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 257 transitions, 530 flow [2023-08-25 02:28:06,572 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 254 transitions, 520 flow [2023-08-25 02:28:06,575 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 02:28:06,584 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 254 transitions, 520 flow [2023-08-25 02:28:06,586 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 254 transitions, 520 flow [2023-08-25 02:28:06,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 254 transitions, 520 flow [2023-08-25 02:28:06,628 INFO L124 PetriNetUnfolderBase]: 13/338 cut-off events. [2023-08-25 02:28:06,628 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 02:28:06,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 338 events. 13/338 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 752 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 167. Up to 4 conditions per place. [2023-08-25 02:28:06,634 INFO L119 LiptonReduction]: Number of co-enabled transitions 7412 [2023-08-25 02:28:37,979 WARN L234 SmtUtils]: Spent 8.66s on a formula simplification. DAG size of input: 191 DAG size of output: 184 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 02:28:50,914 WARN L234 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 191 DAG size of output: 184 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 02:29:15,443 INFO L134 LiptonReduction]: Checked pairs total: 46480 [2023-08-25 02:29:15,443 INFO L136 LiptonReduction]: Total number of compositions: 250 [2023-08-25 02:29:15,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 02:29:15,455 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;@26444c5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 02:29:15,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-08-25 02:29:15,456 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 02:29:15,456 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 02:29:15,456 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:29:15,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:29:15,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 02:29:15,457 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-25 02:29:15,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:29:15,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1006, now seen corresponding path program 1 times [2023-08-25 02:29:15,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:29:15,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730851641] [2023-08-25 02:29:15,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:29:15,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:29:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:29:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:29:15,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:29:15,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730851641] [2023-08-25 02:29:15,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730851641] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:29:15,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:29:15,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 02:29:15,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127158548] [2023-08-25 02:29:15,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:29:15,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 02:29:15,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:29:15,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 02:29:15,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 02:29:15,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 507 [2023-08-25 02:29:15,652 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) [2023-08-25 02:29:15,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:29:15,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 507 [2023-08-25 02:29:15,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:29:15,960 INFO L124 PetriNetUnfolderBase]: 736/1900 cut-off events. [2023-08-25 02:29:15,960 INFO L125 PetriNetUnfolderBase]: For 34/67 co-relation queries the response was YES. [2023-08-25 02:29:15,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3168 conditions, 1900 events. 736/1900 cut-off events. For 34/67 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 12216 event pairs, 735 based on Foata normal form. 74/1770 useless extension candidates. Maximal degree in co-relation 2876. Up to 1244 conditions per place. [2023-08-25 02:29:15,970 INFO L140 encePairwiseOnDemand]: 491/507 looper letters, 37 selfloop transitions, 0 changer transitions 1/72 dead transitions. [2023-08-25 02:29:15,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 72 transitions, 232 flow [2023-08-25 02:29:15,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 02:29:15,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 02:29:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 492 transitions. [2023-08-25 02:29:15,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48520710059171596 [2023-08-25 02:29:15,983 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 492 transitions. [2023-08-25 02:29:15,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 492 transitions. [2023-08-25 02:29:15,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:29:15,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 492 transitions. [2023-08-25 02:29:15,991 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) [2023-08-25 02:29:15,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 507.0) internal successors, (1521), 3 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:15,995 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 507.0) internal successors, (1521), 3 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:15,996 INFO L175 Difference]: Start difference. First operand has 92 places, 89 transitions, 190 flow. Second operand 2 states and 492 transitions. [2023-08-25 02:29:15,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 72 transitions, 232 flow [2023-08-25 02:29:15,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 72 transitions, 224 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 02:29:16,001 INFO L231 Difference]: Finished difference. Result has 74 places, 71 transitions, 146 flow [2023-08-25 02:29:16,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=507, 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} [2023-08-25 02:29:16,005 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -18 predicate places. [2023-08-25 02:29:16,005 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 71 transitions, 146 flow [2023-08-25 02:29:16,006 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) [2023-08-25 02:29:16,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:29:16,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:29:16,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 02:29:16,006 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-25 02:29:16,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:29:16,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1496843772, now seen corresponding path program 1 times [2023-08-25 02:29:16,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:29:16,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928425508] [2023-08-25 02:29:16,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:29:16,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:29:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:29:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:29:16,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:29:16,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928425508] [2023-08-25 02:29:16,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928425508] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:29:16,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:29:16,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:29:16,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607062224] [2023-08-25 02:29:16,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:29:16,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:29:16,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:29:16,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:29:16,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:29:16,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 507 [2023-08-25 02:29:16,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:16,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:29:16,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 507 [2023-08-25 02:29:16,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:29:16,559 INFO L124 PetriNetUnfolderBase]: 676/1868 cut-off events. [2023-08-25 02:29:16,560 INFO L125 PetriNetUnfolderBase]: For 7/23 co-relation queries the response was YES. [2023-08-25 02:29:16,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3023 conditions, 1868 events. 676/1868 cut-off events. For 7/23 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 12443 event pairs, 675 based on Foata normal form. 0/1687 useless extension candidates. Maximal degree in co-relation 3020. Up to 1145 conditions per place. [2023-08-25 02:29:16,566 INFO L140 encePairwiseOnDemand]: 504/507 looper letters, 36 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2023-08-25 02:29:16,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 72 transitions, 224 flow [2023-08-25 02:29:16,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:29:16,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:29:16,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 681 transitions. [2023-08-25 02:29:16,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4477317554240631 [2023-08-25 02:29:16,569 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 681 transitions. [2023-08-25 02:29:16,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 681 transitions. [2023-08-25 02:29:16,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:29:16,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 681 transitions. [2023-08-25 02:29:16,570 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) [2023-08-25 02:29:16,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 507.0) internal successors, (2028), 4 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:16,573 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 507.0) internal successors, (2028), 4 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:16,573 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 146 flow. Second operand 3 states and 681 transitions. [2023-08-25 02:29:16,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 72 transitions, 224 flow [2023-08-25 02:29:16,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 72 transitions, 224 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:29:16,575 INFO L231 Difference]: Finished difference. Result has 76 places, 72 transitions, 158 flow [2023-08-25 02:29:16,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=507, 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} [2023-08-25 02:29:16,576 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2023-08-25 02:29:16,576 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 72 transitions, 158 flow [2023-08-25 02:29:16,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:16,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:29:16,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:29:16,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 02:29:16,577 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-25 02:29:16,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:29:16,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1156397719, now seen corresponding path program 1 times [2023-08-25 02:29:16,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:29:16,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665311723] [2023-08-25 02:29:16,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:29:16,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:29:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:29:16,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:29:16,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:29:16,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665311723] [2023-08-25 02:29:16,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665311723] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:29:16,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:29:16,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 02:29:16,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738246961] [2023-08-25 02:29:16,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:29:16,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 02:29:16,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:29:16,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 02:29:16,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 02:29:16,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 507 [2023-08-25 02:29:16,831 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) [2023-08-25 02:29:16,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:29:16,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 507 [2023-08-25 02:29:16,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:29:17,571 INFO L124 PetriNetUnfolderBase]: 2578/4237 cut-off events. [2023-08-25 02:29:17,572 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-08-25 02:29:17,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8555 conditions, 4237 events. 2578/4237 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 20622 event pairs, 2117 based on Foata normal form. 0/3965 useless extension candidates. Maximal degree in co-relation 8550. Up to 3894 conditions per place. [2023-08-25 02:29:17,584 INFO L140 encePairwiseOnDemand]: 493/507 looper letters, 85 selfloop transitions, 31 changer transitions 0/117 dead transitions. [2023-08-25 02:29:17,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 117 transitions, 480 flow [2023-08-25 02:29:17,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 02:29:17,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 02:29:17,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 980 transitions. [2023-08-25 02:29:17,587 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32215647600262987 [2023-08-25 02:29:17,587 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 980 transitions. [2023-08-25 02:29:17,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 980 transitions. [2023-08-25 02:29:17,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:29:17,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 980 transitions. [2023-08-25 02:29:17,589 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) [2023-08-25 02:29:17,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 507.0) internal successors, (3549), 7 states have internal predecessors, (3549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:17,593 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 507.0) internal successors, (3549), 7 states have internal predecessors, (3549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:17,593 INFO L175 Difference]: Start difference. First operand has 76 places, 72 transitions, 158 flow. Second operand 6 states and 980 transitions. [2023-08-25 02:29:17,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 117 transitions, 480 flow [2023-08-25 02:29:17,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 117 transitions, 478 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 02:29:17,595 INFO L231 Difference]: Finished difference. Result has 85 places, 101 transitions, 362 flow [2023-08-25 02:29:17,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=507, 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} [2023-08-25 02:29:17,596 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -7 predicate places. [2023-08-25 02:29:17,596 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 101 transitions, 362 flow [2023-08-25 02:29:17,597 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) [2023-08-25 02:29:17,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:29:17,597 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:29:17,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 02:29:17,597 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-25 02:29:17,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:29:17,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1383189162, now seen corresponding path program 1 times [2023-08-25 02:29:17,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:29:17,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631002307] [2023-08-25 02:29:17,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:29:17,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:29:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:29:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:29:17,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:29:17,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631002307] [2023-08-25 02:29:17,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631002307] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:29:17,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:29:17,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 02:29:17,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524197398] [2023-08-25 02:29:17,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:29:17,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 02:29:17,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:29:17,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 02:29:17,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 02:29:17,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 507 [2023-08-25 02:29:17,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 101 transitions, 362 flow. Second operand has 6 states, 6 states have (on average 156.83333333333334) internal successors, (941), 6 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:17,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:29:17,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 507 [2023-08-25 02:29:17,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:29:18,552 INFO L124 PetriNetUnfolderBase]: 2814/4641 cut-off events. [2023-08-25 02:29:18,552 INFO L125 PetriNetUnfolderBase]: For 1599/1599 co-relation queries the response was YES. [2023-08-25 02:29:18,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11913 conditions, 4641 events. 2814/4641 cut-off events. For 1599/1599 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 23414 event pairs, 2029 based on Foata normal form. 0/4406 useless extension candidates. Maximal degree in co-relation 11904. Up to 4226 conditions per place. [2023-08-25 02:29:18,571 INFO L140 encePairwiseOnDemand]: 496/507 looper letters, 125 selfloop transitions, 22 changer transitions 0/148 dead transitions. [2023-08-25 02:29:18,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 148 transitions, 799 flow [2023-08-25 02:29:18,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 02:29:18,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 02:29:18,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1048 transitions. [2023-08-25 02:29:18,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3445101906640368 [2023-08-25 02:29:18,574 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1048 transitions. [2023-08-25 02:29:18,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1048 transitions. [2023-08-25 02:29:18,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:29:18,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1048 transitions. [2023-08-25 02:29:18,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:18,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 507.0) internal successors, (3549), 7 states have internal predecessors, (3549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:18,581 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 507.0) internal successors, (3549), 7 states have internal predecessors, (3549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:18,581 INFO L175 Difference]: Start difference. First operand has 85 places, 101 transitions, 362 flow. Second operand 6 states and 1048 transitions. [2023-08-25 02:29:18,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 148 transitions, 799 flow [2023-08-25 02:29:18,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 148 transitions, 799 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:29:18,586 INFO L231 Difference]: Finished difference. Result has 95 places, 122 transitions, 544 flow [2023-08-25 02:29:18,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=507, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=544, PETRI_PLACES=95, PETRI_TRANSITIONS=122} [2023-08-25 02:29:18,587 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 3 predicate places. [2023-08-25 02:29:18,587 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 122 transitions, 544 flow [2023-08-25 02:29:18,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.83333333333334) internal successors, (941), 6 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:18,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:29:18,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:29:18,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 02:29:18,588 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-25 02:29:18,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:29:18,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2073783870, now seen corresponding path program 1 times [2023-08-25 02:29:18,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:29:18,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249256549] [2023-08-25 02:29:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:29:18,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:29:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:29:18,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:29:18,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:29:18,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249256549] [2023-08-25 02:29:18,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249256549] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:29:18,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:29:18,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 02:29:18,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575842628] [2023-08-25 02:29:18,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:29:18,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:29:18,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:29:18,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:29:18,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:29:18,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 507 [2023-08-25 02:29:18,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 122 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:18,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:29:18,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 507 [2023-08-25 02:29:18,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:29:18,939 INFO L124 PetriNetUnfolderBase]: 461/974 cut-off events. [2023-08-25 02:29:18,940 INFO L125 PetriNetUnfolderBase]: For 1015/1134 co-relation queries the response was YES. [2023-08-25 02:29:18,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2891 conditions, 974 events. 461/974 cut-off events. For 1015/1134 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4991 event pairs, 231 based on Foata normal form. 0/914 useless extension candidates. Maximal degree in co-relation 2877. Up to 655 conditions per place. [2023-08-25 02:29:18,945 INFO L140 encePairwiseOnDemand]: 504/507 looper letters, 62 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2023-08-25 02:29:18,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 101 transitions, 538 flow [2023-08-25 02:29:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:29:18,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:29:18,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 690 transitions. [2023-08-25 02:29:18,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4536489151873767 [2023-08-25 02:29:18,949 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 690 transitions. [2023-08-25 02:29:18,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 690 transitions. [2023-08-25 02:29:18,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:29:18,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 690 transitions. [2023-08-25 02:29:18,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:18,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 507.0) internal successors, (2028), 4 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:18,953 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 507.0) internal successors, (2028), 4 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:18,953 INFO L175 Difference]: Start difference. First operand has 95 places, 122 transitions, 544 flow. Second operand 3 states and 690 transitions. [2023-08-25 02:29:18,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 101 transitions, 538 flow [2023-08-25 02:29:18,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 101 transitions, 515 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-08-25 02:29:18,957 INFO L231 Difference]: Finished difference. Result has 87 places, 91 transitions, 351 flow [2023-08-25 02:29:18,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=507, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=87, PETRI_TRANSITIONS=91} [2023-08-25 02:29:18,957 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -5 predicate places. [2023-08-25 02:29:18,958 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 91 transitions, 351 flow [2023-08-25 02:29:18,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:29:18,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:29:18,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:29:18,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 02:29:18,958 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-25 02:29:18,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:29:18,958 INFO L85 PathProgramCache]: Analyzing trace with hash 109894299, now seen corresponding path program 1 times [2023-08-25 02:29:18,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:29:18,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066872130] [2023-08-25 02:29:18,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:29:18,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:29:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:29:18,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 02:29:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:29:19,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 02:29:19,018 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 02:29:19,019 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2023-08-25 02:29:19,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2023-08-25 02:29:19,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2023-08-25 02:29:19,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2023-08-25 02:29:19,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2023-08-25 02:29:19,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2023-08-25 02:29:19,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2023-08-25 02:29:19,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONASSERT (23 of 31 remaining) [2023-08-25 02:29:19,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2023-08-25 02:29:19,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2023-08-25 02:29:19,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (20 of 31 remaining) [2023-08-25 02:29:19,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2023-08-25 02:29:19,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONASSERT (17 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONASSERT (14 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONASSERT (13 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONASSERT (11 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2023-08-25 02:29:19,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2023-08-25 02:29:19,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2023-08-25 02:29:19,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2023-08-25 02:29:19,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2023-08-25 02:29:19,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2023-08-25 02:29:19,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2023-08-25 02:29:19,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2023-08-25 02:29:19,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 02:29:19,025 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-25 02:29:19,030 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 02:29:19,030 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 02:29:19,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 02:29:19 BasicIcfg [2023-08-25 02:29:19,072 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 02:29:19,074 INFO L158 Benchmark]: Toolchain (without parser) took 74222.24ms. Allocated memory was 348.1MB in the beginning and 457.2MB in the end (delta: 109.1MB). Free memory was 321.6MB in the beginning and 201.0MB in the end (delta: 120.6MB). Peak memory consumption was 227.9MB. Max. memory is 16.0GB. [2023-08-25 02:29:19,074 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 348.1MB. Free memory is still 325.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 02:29:19,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 783.62ms. Allocated memory is still 348.1MB. Free memory was 321.3MB in the beginning and 321.3MB in the end (delta: -68.6kB). Peak memory consumption was 63.8MB. Max. memory is 16.0GB. [2023-08-25 02:29:19,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.54ms. Allocated memory is still 348.1MB. Free memory was 321.3MB in the beginning and 315.9MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-08-25 02:29:19,075 INFO L158 Benchmark]: Boogie Preprocessor took 39.40ms. Allocated memory is still 348.1MB. Free memory was 315.9MB in the beginning and 311.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 02:29:19,075 INFO L158 Benchmark]: RCFGBuilder took 598.10ms. Allocated memory is still 348.1MB. Free memory was 311.7MB in the beginning and 257.2MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. [2023-08-25 02:29:19,075 INFO L158 Benchmark]: TraceAbstraction took 72716.94ms. Allocated memory was 348.1MB in the beginning and 457.2MB in the end (delta: 109.1MB). Free memory was 256.1MB in the beginning and 201.0MB in the end (delta: 55.1MB). Peak memory consumption was 164.1MB. Max. memory is 16.0GB. [2023-08-25 02:29:19,077 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 348.1MB. Free memory is still 325.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 783.62ms. Allocated memory is still 348.1MB. Free memory was 321.3MB in the beginning and 321.3MB in the end (delta: -68.6kB). Peak memory consumption was 63.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 79.54ms. Allocated memory is still 348.1MB. Free memory was 321.3MB in the beginning and 315.9MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.40ms. Allocated memory is still 348.1MB. Free memory was 315.9MB in the beginning and 311.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 598.10ms. Allocated memory is still 348.1MB. Free memory was 311.7MB in the beginning and 257.2MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. * TraceAbstraction took 72716.94ms. Allocated memory was 348.1MB in the beginning and 457.2MB in the end (delta: 109.1MB). Free memory was 256.1MB in the beginning and 201.0MB in the end (delta: 55.1MB). Peak memory consumption was 164.1MB. 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: 68.9s, 251 PlacesBefore, 92 PlacesAfterwards, 254 TransitionsBefore, 89 TransitionsAfterwards, 7412 CoEnabledTransitionPairs, 11 FixpointIterations, 119 TrivialSequentialCompositions, 84 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 33 ConcurrentYvCompositions, 6 ChoiceCompositions, 250 TotalNumberOfCompositions, 46480 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8936, independent: 7336, independent conditional: 0, independent unconditional: 7336, dependent: 1600, dependent conditional: 0, dependent unconditional: 1600, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3720, independent: 3585, independent conditional: 0, independent unconditional: 3585, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8936, independent: 3751, independent conditional: 0, independent unconditional: 3751, dependent: 1465, dependent conditional: 0, dependent unconditional: 1465, unknown: 3720, unknown conditional: 0, unknown unconditional: 3720] , Statistics on independence cache: Total cache size (in pairs): 205, Positive cache size: 131, Positive conditional cache size: 0, Positive unconditional cache size: 131, Negative cache size: 74, Negative conditional cache size: 0, Negative unconditional cache size: 74, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1722]: Data race detected Data race detected The following path leads to a data race: [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={7:24}, d={7:24}, data={7:0}, data={7:0}, 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={3:2}, arg={7:24}, arg={7:24}, d={7:24}, data={3:-22}, data={7:0}, data={7:0}, dev={7:24}, 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; [L1722] EXPR 0 \read(t1) VAL [\read(t1)=-2, __mptr={3:2}, arg={7:24}, arg={7:24}, data={3:-22}, data={7:0}, data={7:0}, dev={7:24}, pthread_mutex_lock (&data->lock)=0, status={6:0}, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={3:2}, arg={7:24}, arg={7:24}, data={3:-22}, dev={7:24}, t1={3:0}, t2={4:0}] [L1722] 0 pthread_join(t1, &status) VAL [\read(t1)=-2, __mptr={3:2}, arg={7:24}, arg={7:24}, data={3:-22}, data={7:0}, data={7:0}, dev={7:24}, status={6:0}, t1={3:0}, t2={4:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: data->shared.a = 0 [1708] * C: data->shared.b = 0 [1709] * C: data->shared.a = 1 [1694] * C: data->shared.a = 1 [1694] * C: data->shared.a = 0 [1708] * C: data->shared.b = 0 [1709] * C: data->shared.a = 0 [1708] * C: data->shared.a = 0 [1708] * C: data->shared.a = 1 [1694] * C: data->shared.b = 0 [1709] * C: data->shared.b = 0 [1709] * C: data->shared.a = 1 [1694] and C: pthread_join(t1, &status) [1722] - 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: 1756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1730]: 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: 1757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1733]: 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: 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: 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: 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: 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: 72.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 69.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 683 IncrementalHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 58 mSDtfsCounter, 683 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=544occurred in iteration=4, InterpolantAutomatonStates: 20, 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, 0.7s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 209 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! [2023-08-25 02:29:19,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...