/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/increased_bounds/goblint-regression_36-apron_41-threadenter-no-locals_unknown_1_neg_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-04 04:35:53,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-04 04:35:53,571 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-04 04:35:53,577 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-04 04:35:53,578 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-04 04:35:53,578 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-04 04:35:53,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-04 04:35:53,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-04 04:35:53,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-04 04:35:53,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-04 04:35:53,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-04 04:35:53,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-04 04:35:53,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-04 04:35:53,622 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-04 04:35:53,622 INFO L153 SettingsManager]: * Use SBE=true [2023-08-04 04:35:53,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-04 04:35:53,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-04 04:35:53,623 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-04 04:35:53,623 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-04 04:35:53,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-04 04:35:53,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-04 04:35:53,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-04 04:35:53,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-04 04:35:53,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-04 04:35:53,625 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-04 04:35:53,625 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-04 04:35:53,625 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-04 04:35:53,626 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-04 04:35:53,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-04 04:35:53,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-04 04:35:53,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:35:53,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-04 04:35:53,629 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-04 04:35:53,629 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-04 04:35:53,629 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-04 04:35:53,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-04 04:35:53,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-04 04:35:53,629 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-04 04:35:53,630 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-04 04:35:53,630 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-04 04:35:53,630 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-04 04:35:53,630 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-04 04:35:53,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-04 04:35:53,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-04 04:35:53,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-04 04:35:53,881 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-04 04:35:53,882 INFO L274 PluginConnector]: CDTParser initialized [2023-08-04 04:35:53,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_36-apron_41-threadenter-no-locals_unknown_1_neg_bound2.i [2023-08-04 04:35:55,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-04 04:35:55,327 INFO L384 CDTParser]: Found 1 translation units. [2023-08-04 04:35:55,328 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_36-apron_41-threadenter-no-locals_unknown_1_neg_bound2.i [2023-08-04 04:35:55,352 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cbacd57f/6b0cdcda1b194beaae3f8648bf9dcd81/FLAG95e948f79 [2023-08-04 04:35:55,370 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cbacd57f/6b0cdcda1b194beaae3f8648bf9dcd81 [2023-08-04 04:35:55,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-04 04:35:55,378 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-04 04:35:55,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-04 04:35:55,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-04 04:35:55,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-04 04:35:55,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b54f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55, skipping insertion in model container [2023-08-04 04:35:55,387 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,433 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-04 04:35:55,576 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_36-apron_41-threadenter-no-locals_unknown_1_neg_bound2.i[1102,1115] [2023-08-04 04:35:55,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:35:55,743 INFO L201 MainTranslator]: Completed pre-run [2023-08-04 04:35:55,754 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_36-apron_41-threadenter-no-locals_unknown_1_neg_bound2.i[1102,1115] [2023-08-04 04:35:55,761 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-04 04:35:55,763 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-04 04:35:55,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:35:55,817 INFO L206 MainTranslator]: Completed translation [2023-08-04 04:35:55,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55 WrapperNode [2023-08-04 04:35:55,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-04 04:35:55,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-04 04:35:55,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-04 04:35:55,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-04 04:35:55,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,862 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2023-08-04 04:35:55,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-04 04:35:55,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-04 04:35:55,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-04 04:35:55,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-04 04:35:55,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,893 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,895 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-04 04:35:55,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-04 04:35:55,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-04 04:35:55,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-04 04:35:55,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (1/1) ... [2023-08-04 04:35:55,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:35:55,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:35:55,946 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 04:35:55,959 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 04:35:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-04 04:35:55,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-04 04:35:55,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-04 04:35:55,988 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-04 04:35:55,988 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-04 04:35:55,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-04 04:35:55,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-04 04:35:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-04 04:35:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-04 04:35:55,991 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 04:35:56,135 INFO L236 CfgBuilder]: Building ICFG [2023-08-04 04:35:56,137 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-04 04:35:56,282 INFO L277 CfgBuilder]: Performing block encoding [2023-08-04 04:35:56,288 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-04 04:35:56,289 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-04 04:35:56,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:35:56 BoogieIcfgContainer [2023-08-04 04:35:56,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-04 04:35:56,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-04 04:35:56,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-04 04:35:56,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-04 04:35:56,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.08 04:35:55" (1/3) ... [2023-08-04 04:35:56,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd7063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:35:56, skipping insertion in model container [2023-08-04 04:35:56,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:55" (2/3) ... [2023-08-04 04:35:56,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd7063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:35:56, skipping insertion in model container [2023-08-04 04:35:56,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:35:56" (3/3) ... [2023-08-04 04:35:56,327 INFO L112 eAbstractionObserver]: Analyzing ICFG goblint-regression_36-apron_41-threadenter-no-locals_unknown_1_neg_bound2.i [2023-08-04 04:35:56,339 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-04 04:35:56,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-04 04:35:56,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-04 04:35:56,350 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-04 04:35:56,403 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-04 04:35:56,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 45 transitions, 95 flow [2023-08-04 04:35:56,459 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2023-08-04 04:35:56,459 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:35:56,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 56 events. 3/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 31. Up to 4 conditions per place. [2023-08-04 04:35:56,464 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 45 transitions, 95 flow [2023-08-04 04:35:56,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 45 transitions, 95 flow [2023-08-04 04:35:56,470 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 04:35:56,478 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 45 transitions, 95 flow [2023-08-04 04:35:56,480 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 45 transitions, 95 flow [2023-08-04 04:35:56,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 45 transitions, 95 flow [2023-08-04 04:35:56,494 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2023-08-04 04:35:56,494 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:35:56,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 56 events. 3/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 31. Up to 4 conditions per place. [2023-08-04 04:35:56,495 INFO L119 LiptonReduction]: Number of co-enabled transitions 510 [2023-08-04 04:35:57,759 INFO L134 LiptonReduction]: Checked pairs total: 423 [2023-08-04 04:35:57,759 INFO L136 LiptonReduction]: Total number of compositions: 47 [2023-08-04 04:35:57,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-04 04:35:57,788 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;@31f45233, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 04:35:57,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-04 04:35:57,795 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 04:35:57,795 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-04 04:35:57,795 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:35:57,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:35:57,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-04 04:35:57,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:35:57,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:35:57,803 INFO L85 PathProgramCache]: Analyzing trace with hash 6017821, now seen corresponding path program 1 times [2023-08-04 04:35:57,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:35:57,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287572767] [2023-08-04 04:35:57,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:35:57,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:35:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-04 04:35:57,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-04 04:35:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-04 04:35:57,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-04 04:35:57,967 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-04 04:35:57,968 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-04 04:35:57,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-08-04 04:35:57,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-04 04:35:57,970 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-04 04:35:57,973 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN (1/2) [2023-08-04 04:35:57,976 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-04 04:35:57,976 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-04 04:35:57,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 04:35:57 BasicIcfg [2023-08-04 04:35:57,992 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-04 04:35:57,993 INFO L158 Benchmark]: Toolchain (without parser) took 2614.35ms. Allocated memory is still 444.6MB. Free memory was 396.8MB in the beginning and 394.4MB in the end (delta: 2.3MB). Peak memory consumption was 4.4MB. Max. memory is 16.0GB. [2023-08-04 04:35:57,993 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 327.2MB. Free memory is still 280.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-04 04:35:57,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.42ms. Allocated memory is still 444.6MB. Free memory was 396.5MB in the beginning and 378.0MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-04 04:35:57,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.45ms. Allocated memory is still 444.6MB. Free memory was 378.0MB in the beginning and 376.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 04:35:57,994 INFO L158 Benchmark]: Boogie Preprocessor took 33.92ms. Allocated memory is still 444.6MB. Free memory was 376.1MB in the beginning and 374.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 04:35:57,995 INFO L158 Benchmark]: RCFGBuilder took 393.75ms. Allocated memory is still 444.6MB. Free memory was 374.6MB in the beginning and 363.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-04 04:35:57,995 INFO L158 Benchmark]: TraceAbstraction took 1670.29ms. Allocated memory is still 444.6MB. Free memory was 412.9MB in the beginning and 394.4MB in the end (delta: 18.4MB). Peak memory consumption was 17.2MB. Max. memory is 16.0GB. [2023-08-04 04:35:57,998 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 327.2MB. Free memory is still 280.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 436.42ms. Allocated memory is still 444.6MB. Free memory was 396.5MB in the beginning and 378.0MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.45ms. Allocated memory is still 444.6MB. Free memory was 378.0MB in the beginning and 376.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.92ms. Allocated memory is still 444.6MB. Free memory was 376.1MB in the beginning and 374.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 393.75ms. Allocated memory is still 444.6MB. Free memory was 374.6MB in the beginning and 363.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1670.29ms. Allocated memory is still 444.6MB. Free memory was 412.9MB in the beginning and 394.4MB in the end (delta: 18.4MB). Peak memory consumption was 17.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 46 PlacesBefore, 11 PlacesAfterwards, 45 TransitionsBefore, 8 TransitionsAfterwards, 510 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 47 TotalNumberOfCompositions, 423 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 423, independent: 423, independent conditional: 0, independent unconditional: 423, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 270, independent: 270, independent conditional: 0, independent unconditional: 270, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 423, independent: 153, independent conditional: 0, independent unconditional: 153, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 270, unknown conditional: 0, unknown unconditional: 270] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; [L689] 0 pthread_t id[2]; [L690] 0 int asdf=0; VAL [asdf=0, id={3:0}, x=3] [L690] COND TRUE 0 asdf<2 [L690] FCALL, FORK 0 pthread_create(&id[asdf], ((void *)0), t_fun, ((void *)0)) VAL [asdf=0, id={3:0}, pthread_create(&id[asdf], ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(!(x == 3)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 59 locations, 3 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: 1.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2023-08-04 04:35:58,016 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...