/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread_reorder_2_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-04 04:28:42,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-04 04:28:42,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-04 04:28:42,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-04 04:28:42,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-04 04:28:42,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-04 04:28:42,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-04 04:28:42,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-04 04:28:42,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-04 04:28:42,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-04 04:28:42,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-04 04:28:42,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-04 04:28:42,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-04 04:28:42,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-04 04:28:42,585 INFO L153 SettingsManager]: * Use SBE=true [2023-08-04 04:28:42,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-04 04:28:42,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-04 04:28:42,586 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-04 04:28:42,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-04 04:28:42,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-04 04:28:42,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-04 04:28:42,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-04 04:28:42,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-04 04:28:42,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-04 04:28:42,588 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-04 04:28:42,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-04 04:28:42,589 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-04 04:28:42,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-04 04:28:42,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-04 04:28:42,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-04 04:28:42,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:28:42,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-04 04:28:42,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-04 04:28:42,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-04 04:28:42,591 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-04 04:28:42,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-04 04:28:42,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-04 04:28:42,591 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-04 04:28:42,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-04 04:28:42,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-04 04:28:42,592 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-04 04:28:42,592 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-04 04:28:42,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-04 04:28:42,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-04 04:28:42,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-04 04:28:42,848 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-04 04:28:42,848 INFO L274 PluginConnector]: CDTParser initialized [2023-08-04 04:28:42,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread_reorder_2_bound2.i [2023-08-04 04:28:44,042 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-04 04:28:44,312 INFO L384 CDTParser]: Found 1 translation units. [2023-08-04 04:28:44,312 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread_reorder_2_bound2.i [2023-08-04 04:28:44,341 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6848afca1/bf5f0afa8b7049ca9233791de2dbb810/FLAGa9eed1a36 [2023-08-04 04:28:44,360 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6848afca1/bf5f0afa8b7049ca9233791de2dbb810 [2023-08-04 04:28:44,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-04 04:28:44,367 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-04 04:28:44,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-04 04:28:44,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-04 04:28:44,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-04 04:28:44,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:44,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5039ac35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44, skipping insertion in model container [2023-08-04 04:28:44,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:44,434 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-04 04:28:44,838 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread_reorder_2_bound2.i[59849,59862] [2023-08-04 04:28:44,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:28:44,846 INFO L201 MainTranslator]: Completed pre-run [2023-08-04 04:28:44,859 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [133] [2023-08-04 04:28:44,870 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [510] [2023-08-04 04:28:44,871 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [510] [2023-08-04 04:28:44,893 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread_reorder_2_bound2.i[59849,59862] [2023-08-04 04:28:44,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:28:44,980 WARN L667 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-08-04 04:28:44,986 INFO L206 MainTranslator]: Completed translation [2023-08-04 04:28:44,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44 WrapperNode [2023-08-04 04:28:44,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-04 04:28:44,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-04 04:28:44,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-04 04:28:44,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-04 04:28:44,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:45,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:45,049 INFO L138 Inliner]: procedures = 372, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 166 [2023-08-04 04:28:45,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-04 04:28:45,050 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-04 04:28:45,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-04 04:28:45,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-04 04:28:45,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:45,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:45,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:45,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:45,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:45,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:45,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:45,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:45,079 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-04 04:28:45,080 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-04 04:28:45,080 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-04 04:28:45,080 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-04 04:28:45,081 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (1/1) ... [2023-08-04 04:28:45,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:28:45,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:28:45,118 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) [2023-08-04 04:28:45,120 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 [2023-08-04 04:28:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-08-04 04:28:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-04 04:28:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-04 04:28:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-04 04:28:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-04 04:28:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-08-04 04:28:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-08-04 04:28:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-04 04:28:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-04 04:28:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-08-04 04:28:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-08-04 04:28:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-04 04:28:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-04 04:28:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-04 04:28:45,153 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-04 04:28:45,318 INFO L236 CfgBuilder]: Building ICFG [2023-08-04 04:28:45,320 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-04 04:28:45,634 INFO L277 CfgBuilder]: Performing block encoding [2023-08-04 04:28:45,645 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-04 04:28:45,645 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-04 04:28:45,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:28:45 BoogieIcfgContainer [2023-08-04 04:28:45,648 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-04 04:28:45,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-04 04:28:45,651 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-04 04:28:45,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-04 04:28:45,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.08 04:28:44" (1/3) ... [2023-08-04 04:28:45,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141f392e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:28:45, skipping insertion in model container [2023-08-04 04:28:45,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:28:44" (2/3) ... [2023-08-04 04:28:45,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141f392e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:28:45, skipping insertion in model container [2023-08-04 04:28:45,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:28:45" (3/3) ... [2023-08-04 04:28:45,658 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread_reorder_2_bound2.i [2023-08-04 04:28:45,665 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-04 04:28:45,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-04 04:28:45,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-04 04:28:45,674 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-04 04:28:45,770 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-04 04:28:45,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 188 transitions, 398 flow [2023-08-04 04:28:45,910 INFO L124 PetriNetUnfolderBase]: 37/373 cut-off events. [2023-08-04 04:28:45,911 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-04 04:28:45,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 373 events. 37/373 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1301 event pairs, 0 based on Foata normal form. 0/328 useless extension candidates. Maximal degree in co-relation 202. Up to 8 conditions per place. [2023-08-04 04:28:45,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 188 transitions, 398 flow [2023-08-04 04:28:45,930 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 185 transitions, 384 flow [2023-08-04 04:28:45,933 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 04:28:45,940 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 185 transitions, 384 flow [2023-08-04 04:28:45,942 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 185 transitions, 384 flow [2023-08-04 04:28:45,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 185 transitions, 384 flow [2023-08-04 04:28:46,018 INFO L124 PetriNetUnfolderBase]: 31/344 cut-off events. [2023-08-04 04:28:46,019 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-04 04:28:46,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 344 events. 31/344 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1125 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-08-04 04:28:46,023 INFO L119 LiptonReduction]: Number of co-enabled transitions 2436 [2023-08-04 04:28:56,609 INFO L134 LiptonReduction]: Checked pairs total: 2914 [2023-08-04 04:28:56,610 INFO L136 LiptonReduction]: Total number of compositions: 208 [2023-08-04 04:28:56,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-04 04:28:56,627 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=true, 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;@71e7623d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 04:28:56,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-04 04:28:56,633 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 04:28:56,633 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-04 04:28:56,633 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:28:56,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:28:56,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-04 04:28:56,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:28:56,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:28:56,639 INFO L85 PathProgramCache]: Analyzing trace with hash 665732177, now seen corresponding path program 1 times [2023-08-04 04:28:56,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:28:56,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234025486] [2023-08-04 04:28:56,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:28:56,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:28:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:28:57,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:28:57,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:28:57,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234025486] [2023-08-04 04:28:57,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234025486] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 04:28:57,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 04:28:57,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-04 04:28:57,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205226305] [2023-08-04 04:28:57,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 04:28:57,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-04 04:28:57,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:28:57,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-04 04:28:57,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-04 04:28:57,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 396 [2023-08-04 04:28:57,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2023-08-04 04:28:57,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:28:57,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 396 [2023-08-04 04:28:57,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:28:57,190 INFO L124 PetriNetUnfolderBase]: 118/269 cut-off events. [2023-08-04 04:28:57,190 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-04 04:28:57,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 269 events. 118/269 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1094 event pairs, 29 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 382. Up to 201 conditions per place. [2023-08-04 04:28:57,192 INFO L140 encePairwiseOnDemand]: 393/396 looper letters, 28 selfloop transitions, 2 changer transitions 3/34 dead transitions. [2023-08-04 04:28:57,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 34 transitions, 151 flow [2023-08-04 04:28:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-04 04:28:57,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-04 04:28:57,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 535 transitions. [2023-08-04 04:28:57,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4503367003367003 [2023-08-04 04:28:57,207 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 535 transitions. [2023-08-04 04:28:57,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 535 transitions. [2023-08-04 04:28:57,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:28:57,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 535 transitions. [2023-08-04 04:28:57,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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) [2023-08-04 04:28:57,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 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) [2023-08-04 04:28:57,220 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 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) [2023-08-04 04:28:57,222 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 58 flow. Second operand 3 states and 535 transitions. [2023-08-04 04:28:57,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 34 transitions, 151 flow [2023-08-04 04:28:57,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 34 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-04 04:28:57,227 INFO L231 Difference]: Finished difference. Result has 27 places, 21 transitions, 61 flow [2023-08-04 04:28:57,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=27, PETRI_TRANSITIONS=21} [2023-08-04 04:28:57,231 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2023-08-04 04:28:57,231 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 21 transitions, 61 flow [2023-08-04 04:28:57,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2023-08-04 04:28:57,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:28:57,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:28:57,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-04 04:28:57,232 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:28:57,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:28:57,233 INFO L85 PathProgramCache]: Analyzing trace with hash 458884262, now seen corresponding path program 1 times [2023-08-04 04:28:57,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:28:57,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480339624] [2023-08-04 04:28:57,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:28:57,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:28:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-04 04:28:57,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-04 04:28:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-04 04:28:57,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-04 04:28:57,417 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-04 04:28:57,419 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-04 04:28:57,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-08-04 04:28:57,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-04 04:28:57,423 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-04 04:28:57,425 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN (1/2) [2023-08-04 04:28:57,429 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-04 04:28:57,429 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-04 04:28:57,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 04:28:57 BasicIcfg [2023-08-04 04:28:57,472 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-04 04:28:57,473 INFO L158 Benchmark]: Toolchain (without parser) took 13105.67ms. Allocated memory was 348.1MB in the beginning and 539.0MB in the end (delta: 190.8MB). Free memory was 291.2MB in the beginning and 232.9MB in the end (delta: 58.3MB). Peak memory consumption was 252.1MB. Max. memory is 16.0GB. [2023-08-04 04:28:57,473 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 348.1MB. Free memory is still 298.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-04 04:28:57,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.77ms. Allocated memory was 348.1MB in the beginning and 539.0MB in the end (delta: 190.8MB). Free memory was 291.0MB in the beginning and 494.9MB in the end (delta: -203.8MB). Peak memory consumption was 41.5MB. Max. memory is 16.0GB. [2023-08-04 04:28:57,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.52ms. Allocated memory is still 539.0MB. Free memory was 494.9MB in the beginning and 492.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-04 04:28:57,475 INFO L158 Benchmark]: Boogie Preprocessor took 29.23ms. Allocated memory is still 539.0MB. Free memory was 492.0MB in the beginning and 489.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 04:28:57,476 INFO L158 Benchmark]: RCFGBuilder took 568.42ms. Allocated memory is still 539.0MB. Free memory was 489.1MB in the beginning and 470.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-04 04:28:57,476 INFO L158 Benchmark]: TraceAbstraction took 11821.82ms. Allocated memory is still 539.0MB. Free memory was 469.7MB in the beginning and 232.9MB in the end (delta: 236.7MB). Peak memory consumption was 237.8MB. Max. memory is 16.0GB. [2023-08-04 04:28:57,478 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 348.1MB. Free memory is still 298.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 616.77ms. Allocated memory was 348.1MB in the beginning and 539.0MB in the end (delta: 190.8MB). Free memory was 291.0MB in the beginning and 494.9MB in the end (delta: -203.8MB). Peak memory consumption was 41.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.52ms. Allocated memory is still 539.0MB. Free memory was 494.9MB in the beginning and 492.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.23ms. Allocated memory is still 539.0MB. Free memory was 492.0MB in the beginning and 489.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 568.42ms. Allocated memory is still 539.0MB. Free memory was 489.1MB in the beginning and 470.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 11821.82ms. Allocated memory is still 539.0MB. Free memory was 469.7MB in the beginning and 232.9MB in the end (delta: 236.7MB). Peak memory consumption was 237.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 133]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [133] - GenericResultAtLocation [Line: 510]: Unsoundness Warning unspecified type, defaulting to int C: short [510] - GenericResultAtLocation [Line: 510]: Unsoundness Warning unspecified type, defaulting to int C: short [510] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.7s, 175 PlacesBefore, 25 PlacesAfterwards, 185 TransitionsBefore, 22 TransitionsAfterwards, 2436 CoEnabledTransitionPairs, 8 FixpointIterations, 72 TrivialSequentialCompositions, 90 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 23 ConcurrentYvCompositions, 13 ChoiceCompositions, 208 TotalNumberOfCompositions, 2914 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2282, independent: 2249, independent conditional: 0, independent unconditional: 2249, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1374, independent: 1365, independent conditional: 0, independent unconditional: 1365, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2282, independent: 884, independent conditional: 0, independent unconditional: 884, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 1374, unknown conditional: 0, unknown unconditional: 1374] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 1295]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of sscanf at line 1251. Possible FailurePath: [L1236] 0 static int iSet = 2; [L1237] 0 static int iCheck = 2; [L1238] 0 static int a = 0; [L1239] 0 static int b = 0; [L1245] 0 int i, err; [L1246] COND TRUE 0 argc != 1 [L1247] COND FALSE 0 !(argc != 3) [L1251] 0 argv[1] [L1252] 0 argv[2] [L1255] EXPR 0 \read(iSet) [L1255] 0 iSet > 2 || iCheck > 2 [L1255] EXPR 0 \read(iCheck) [L1255] 0 iSet > 2 || iCheck > 2 [L1255] COND FALSE 0 !(iSet > 2 || iCheck > 2) [L1258] EXPR 0 \read(iSet) [L1258] 0 pthread_t setPool[iSet]; [L1259] EXPR 0 \read(iCheck) [L1259] 0 pthread_t checkPool[iCheck]; [L1260] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={56:55}, argv={56:55}, b=0, checkPool={11:0}, i=0, iCheck={10:0}, iSet={9:0}, setPool={13:0}] [L1260] EXPR 0 \read(iSet) [L1260] COND TRUE 0 i < iSet [L1261] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={56:55}, argv={56:55}, b=0, checkPool={11:0}, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=1, setPool={13:0}] [L1261] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) [L1261] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1260] 0 i++ VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={56:55}, argv={56:55}, b=0, checkPool={11:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=50, i=1, iCheck={10:0}, iSet={9:0}, param={0:0}, setPool={13:0}] [L1260] EXPR 0 \read(iSet) [L1260] COND FALSE 0 !(i < iSet) [L1266] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={56:55}, argv={56:55}, b=0, checkPool={11:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=50, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, setPool={13:0}] [L1266] EXPR 0 \read(iCheck) [L1266] COND TRUE 0 i < iCheck [L1267-L1268] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=1, \read(iSet)=1, a=0, argc=3, argv={56:55}, argv={56:55}, b=0, checkPool={11:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=50, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0))=2, setPool={13:0}] [L1288] 1 a = 1 VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}] [L1293] COND TRUE 2 ! ((a == 0 && b == 0) || (a == 1 && b == -1)) [L1295] 2 reach_error() VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 189 locations, 4 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: 11.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 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 could not prove your program: unable to determine feasibility of some traces [2023-08-04 04:28:57,504 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...