/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.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 22:12:00,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 22:12:00,685 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 22:12:00,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 22:12:00,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 22:12:00,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 22:12:00,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 22:12:00,717 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 22:12:00,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 22:12:00,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 22:12:00,721 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 22:12:00,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 22:12:00,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 22:12:00,723 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 22:12:00,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 22:12:00,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 22:12:00,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 22:12:00,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 22:12:00,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 22:12:00,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 22:12:00,725 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 22:12:00,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 22:12:00,726 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 22:12:00,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 22:12:00,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 22:12:00,727 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 22:12:00,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 22:12:00,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:12:00,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 22:12:00,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 22:12:00,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 22:12:00,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 22:12:00,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 22:12:00,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 22:12:00,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 22:12:00,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 22:12:01,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 22:12:01,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 22:12:01,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 22:12:01,088 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 22:12:01,090 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 22:12:01,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr-overflow.i [2023-08-26 22:12:02,344 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 22:12:02,660 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 22:12:02,660 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr-overflow.i [2023-08-26 22:12:02,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9799929c8/1a7c7b35bc8249d5baa1c06748a57883/FLAGf66f7f764 [2023-08-26 22:12:02,706 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9799929c8/1a7c7b35bc8249d5baa1c06748a57883 [2023-08-26 22:12:02,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 22:12:02,709 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 22:12:02,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 22:12:02,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 22:12:02,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 22:12:02,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:12:02" (1/1) ... [2023-08-26 22:12:02,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44602427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:02, skipping insertion in model container [2023-08-26 22:12:02,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:12:02" (1/1) ... [2023-08-26 22:12:02,779 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 22:12:03,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:12:03,553 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 22:12:03,576 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:12:03,577 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:12:03,583 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [739] [2023-08-26 22:12:03,608 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: long [1798] [2023-08-26 22:12:03,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:12:03,807 WARN L669 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 22:12:03,807 WARN L669 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 22:12:03,808 WARN L669 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 22:12:03,808 WARN L669 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 22:12:03,814 INFO L206 MainTranslator]: Completed translation [2023-08-26 22:12:03,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03 WrapperNode [2023-08-26 22:12:03,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 22:12:03,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 22:12:03,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 22:12:03,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 22:12:03,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (1/1) ... [2023-08-26 22:12:03,869 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (1/1) ... [2023-08-26 22:12:03,916 INFO L138 Inliner]: procedures = 524, calls = 67, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 125 [2023-08-26 22:12:03,916 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 22:12:03,917 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 22:12:03,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 22:12:03,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 22:12:03,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (1/1) ... [2023-08-26 22:12:03,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (1/1) ... [2023-08-26 22:12:03,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (1/1) ... [2023-08-26 22:12:03,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (1/1) ... [2023-08-26 22:12:03,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (1/1) ... [2023-08-26 22:12:03,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (1/1) ... [2023-08-26 22:12:03,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (1/1) ... [2023-08-26 22:12:03,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (1/1) ... [2023-08-26 22:12:03,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 22:12:03,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 22:12:03,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 22:12:03,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 22:12:03,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (1/1) ... [2023-08-26 22:12:03,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:12:04,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:12:04,016 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 22:12:04,018 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 22:12:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-08-26 22:12:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-08-26 22:12:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-26 22:12:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-08-26 22:12:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-08-26 22:12:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-08-26 22:12:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 22:12:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 22:12:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 22:12:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 22:12:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 22:12:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 22:12:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-08-26 22:12:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 22:12:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-08-26 22:12:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-08-26 22:12:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 22:12:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 22:12:04,047 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 22:12:04,294 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 22:12:04,296 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 22:12:04,521 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 22:12:04,530 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 22:12:04,531 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2023-08-26 22:12:04,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:12:04 BoogieIcfgContainer [2023-08-26 22:12:04,534 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 22:12:04,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 22:12:04,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 22:12:04,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 22:12:04,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 10:12:02" (1/3) ... [2023-08-26 22:12:04,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17be5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:12:04, skipping insertion in model container [2023-08-26 22:12:04,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:12:03" (2/3) ... [2023-08-26 22:12:04,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17be5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:12:04, skipping insertion in model container [2023-08-26 22:12:04,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:12:04" (3/3) ... [2023-08-26 22:12:04,544 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr-overflow.i [2023-08-26 22:12:04,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 22:12:04,558 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-26 22:12:04,559 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 22:12:04,649 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-26 22:12:04,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 218 places, 242 transitions, 500 flow [2023-08-26 22:12:04,804 INFO L124 PetriNetUnfolderBase]: 31/240 cut-off events. [2023-08-26 22:12:04,804 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 22:12:04,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 31/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 537 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 150. Up to 5 conditions per place. [2023-08-26 22:12:04,812 INFO L82 GeneralOperation]: Start removeDead. Operand has 218 places, 242 transitions, 500 flow [2023-08-26 22:12:04,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 219 transitions, 447 flow [2023-08-26 22:12:04,825 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 22:12:04,833 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 219 transitions, 447 flow [2023-08-26 22:12:04,835 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 219 transitions, 447 flow [2023-08-26 22:12:04,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 219 transitions, 447 flow [2023-08-26 22:12:04,891 INFO L124 PetriNetUnfolderBase]: 28/219 cut-off events. [2023-08-26 22:12:04,892 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 22:12:04,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 219 events. 28/219 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 495 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 150. Up to 5 conditions per place. [2023-08-26 22:12:04,901 INFO L119 LiptonReduction]: Number of co-enabled transitions 13862 [2023-08-26 22:12:20,455 INFO L134 LiptonReduction]: Checked pairs total: 15107 [2023-08-26 22:12:20,456 INFO L136 LiptonReduction]: Total number of compositions: 252 [2023-08-26 22:12:20,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 22:12:20,473 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;@309f544d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 22:12:20,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-26 22:12:20,474 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 22:12:20,474 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 22:12:20,474 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:12:20,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:12:20,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 22:12:20,476 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-26 22:12:20,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:12:20,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1012, now seen corresponding path program 1 times [2023-08-26 22:12:20,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:12:20,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566773497] [2023-08-26 22:12:20,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:12:20,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:12:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:12:20,685 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 22:12:20,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:12:20,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566773497] [2023-08-26 22:12:20,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566773497] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:12:20,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:12:20,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 22:12:20,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123468868] [2023-08-26 22:12:20,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:12:20,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 22:12:20,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:12:20,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 22:12:20,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 22:12:20,735 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 494 [2023-08-26 22:12:20,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 50 transitions, 109 flow. Second operand has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:12:20,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:12:20,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 494 [2023-08-26 22:12:20,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:12:20,884 INFO L124 PetriNetUnfolderBase]: 328/596 cut-off events. [2023-08-26 22:12:20,884 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-08-26 22:12:20,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 596 events. 328/596 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2807 event pairs, 234 based on Foata normal form. 79/340 useless extension candidates. Maximal degree in co-relation 1056. Up to 513 conditions per place. [2023-08-26 22:12:20,893 INFO L140 encePairwiseOnDemand]: 482/494 looper letters, 26 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2023-08-26 22:12:20,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 121 flow [2023-08-26 22:12:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 22:12:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 22:12:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 460 transitions. [2023-08-26 22:12:20,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46558704453441296 [2023-08-26 22:12:20,909 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 460 transitions. [2023-08-26 22:12:20,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 460 transitions. [2023-08-26 22:12:20,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:12:20,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 460 transitions. [2023-08-26 22:12:20,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 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 22:12:20,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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 22:12:20,925 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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 22:12:20,926 INFO L175 Difference]: Start difference. First operand has 39 places, 50 transitions, 109 flow. Second operand 2 states and 460 transitions. [2023-08-26 22:12:20,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 121 flow [2023-08-26 22:12:20,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 22:12:20,931 INFO L231 Difference]: Finished difference. Result has 31 places, 30 transitions, 64 flow [2023-08-26 22:12:20,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=64, PETRI_PLACES=31, PETRI_TRANSITIONS=30} [2023-08-26 22:12:20,936 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -8 predicate places. [2023-08-26 22:12:20,936 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 30 transitions, 64 flow [2023-08-26 22:12:20,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:12:20,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:12:20,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 22:12:20,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 22:12:20,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-26 22:12:20,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:12:20,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1011, now seen corresponding path program 1 times [2023-08-26 22:12:20,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:12:20,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898798230] [2023-08-26 22:12:20,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:12:20,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:12:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 22:12:21,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 22:12:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 22:12:21,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 22:12:21,071 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 22:12:21,072 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-26 22:12:21,074 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-26 22:12:21,074 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-26 22:12:21,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-26 22:12:21,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-26 22:12:21,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-26 22:12:21,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-26 22:12:21,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-26 22:12:21,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2023-08-26 22:12:21,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2023-08-26 22:12:21,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-26 22:12:21,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-26 22:12:21,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-26 22:12:21,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-26 22:12:21,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-26 22:12:21,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-26 22:12:21,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-26 22:12:21,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-26 22:12:21,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-26 22:12:21,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-26 22:12:21,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 22:12:21,078 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-26 22:12:21,084 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 22:12:21,084 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 22:12:21,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 10:12:21 BasicIcfg [2023-08-26 22:12:21,098 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 22:12:21,099 INFO L158 Benchmark]: Toolchain (without parser) took 18389.79ms. Allocated memory was 335.5MB in the beginning and 539.0MB in the end (delta: 203.4MB). Free memory was 308.9MB in the beginning and 386.9MB in the end (delta: -78.0MB). Peak memory consumption was 125.8MB. Max. memory is 16.0GB. [2023-08-26 22:12:21,099 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 335.5MB. Free memory is still 312.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 22:12:21,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1106.06ms. Allocated memory is still 335.5MB. Free memory was 308.9MB in the beginning and 289.3MB in the end (delta: 19.5MB). Peak memory consumption was 53.8MB. Max. memory is 16.0GB. [2023-08-26 22:12:21,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.68ms. Allocated memory was 335.5MB in the beginning and 448.8MB in the end (delta: 113.2MB). Free memory was 289.3MB in the beginning and 420.2MB in the end (delta: -130.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.0GB. [2023-08-26 22:12:21,101 INFO L158 Benchmark]: Boogie Preprocessor took 67.81ms. Allocated memory is still 448.8MB. Free memory was 420.2MB in the beginning and 417.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 22:12:21,101 INFO L158 Benchmark]: RCFGBuilder took 548.20ms. Allocated memory is still 448.8MB. Free memory was 417.3MB in the beginning and 390.9MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-26 22:12:21,102 INFO L158 Benchmark]: TraceAbstraction took 16561.78ms. Allocated memory was 448.8MB in the beginning and 539.0MB in the end (delta: 90.2MB). Free memory was 390.0MB in the beginning and 386.9MB in the end (delta: 3.1MB). Peak memory consumption was 92.9MB. Max. memory is 16.0GB. [2023-08-26 22:12:21,104 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 335.5MB. Free memory is still 312.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 1106.06ms. Allocated memory is still 335.5MB. Free memory was 308.9MB in the beginning and 289.3MB in the end (delta: 19.5MB). Peak memory consumption was 53.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 99.68ms. Allocated memory was 335.5MB in the beginning and 448.8MB in the end (delta: 113.2MB). Free memory was 289.3MB in the beginning and 420.2MB in the end (delta: -130.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.0GB. * Boogie Preprocessor took 67.81ms. Allocated memory is still 448.8MB. Free memory was 420.2MB in the beginning and 417.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 548.20ms. Allocated memory is still 448.8MB. Free memory was 417.3MB in the beginning and 390.9MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * TraceAbstraction took 16561.78ms. Allocated memory was 448.8MB in the beginning and 539.0MB in the end (delta: 90.2MB). Free memory was 390.0MB in the beginning and 386.9MB in the end (delta: 3.1MB). Peak memory consumption was 92.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 739]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [739] - GenericResultAtLocation [Line: 1798]: Unsoundness Warning unspecified type, defaulting to int C: long [1798] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.6s, 198 PlacesBefore, 39 PlacesAfterwards, 219 TransitionsBefore, 50 TransitionsAfterwards, 13862 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 151 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 30 ConcurrentYvCompositions, 10 ChoiceCompositions, 252 TotalNumberOfCompositions, 15107 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13219, independent: 13143, independent conditional: 0, independent unconditional: 13143, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7984, independent: 7956, independent conditional: 0, independent unconditional: 7956, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13219, independent: 5187, independent conditional: 0, independent unconditional: 5187, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 7984, unknown conditional: 0, unknown unconditional: 7984] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1839]: integer overflow possible integer overflow possible We found a FailurePath: [L1797] pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1798] long counter; [L1799] time_t end_time; [L1836] int status; [L1837] pthread_t counter_thread_id; [L1838] pthread_t monitor_thread_id; [L1839] time (((void *)0)) + 60 VAL [\old(argc)=2147483589, argc=2147483589, argv={2147483590:2147483591}, argv={2147483590:2147483591}, counter=0, counter_thread_id={27:0}, end_time=0, monitor_thread_id={26:0}, mutex={25:0}, time (((void *)0))=2147483588] - UnprovableResult [Line: 1830]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1807]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1807]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1840]: 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: 1843]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 312 locations, 20 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: 16.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 22:12:21,130 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...