/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:56:35,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:56:35,682 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 17:56:35,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:56:35,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:56:35,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:56:35,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:56:35,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:56:35,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:56:35,729 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:56:35,729 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:56:35,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:56:35,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:56:35,731 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:56:35,731 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:56:35,731 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:56:35,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:56:35,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:56:35,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:56:35,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:56:35,733 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:56:35,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:56:35,734 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:56:35,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:56:35,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:56:35,735 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:56:35,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:56:35,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:56:35,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:56:35,736 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:56:35,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:56:35,737 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:56:35,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:56:35,737 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:56:35,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:56:35,738 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:56:36,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:56:36,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:56:36,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:56:36,096 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:56:36,096 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:56:36,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-08-25 17:56:37,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:56:37,601 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:56:37,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-08-25 17:56:37,624 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fffd9e259/553a34f5285446aaaea36b4920f67fc8/FLAGb4d5a7591 [2023-08-25 17:56:37,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fffd9e259/553a34f5285446aaaea36b4920f67fc8 [2023-08-25 17:56:37,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:56:37,644 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:56:37,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:56:37,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:56:37,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:56:37,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:56:37" (1/1) ... [2023-08-25 17:56:37,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e722e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:37, skipping insertion in model container [2023-08-25 17:56:37,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:56:37" (1/1) ... [2023-08-25 17:56:37,696 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:56:38,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:56:38,024 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:56:38,051 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 17:56:38,053 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-25 17:56:38,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:56:38,098 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:56:38,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38 WrapperNode [2023-08-25 17:56:38,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:56:38,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:56:38,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:56:38,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:56:38,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,142 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-08-25 17:56:38,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:56:38,142 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:56:38,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:56:38,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:56:38,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:56:38,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:56:38,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:56:38,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:56:38,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:56:38,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:56:38,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 17:56:38,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 17:56:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:56:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:56:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:56:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:56:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:56:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:56:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:56:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:56:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:56:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:56:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:56:38,249 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:56:38,372 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:56:38,374 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:56:38,571 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:56:38,577 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:56:38,577 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:56:38,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:56:38 BoogieIcfgContainer [2023-08-25 17:56:38,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:56:38,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:56:38,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:56:38,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:56:38,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:56:37" (1/3) ... [2023-08-25 17:56:38,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179f2f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:56:38, skipping insertion in model container [2023-08-25 17:56:38,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (2/3) ... [2023-08-25 17:56:38,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179f2f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:56:38, skipping insertion in model container [2023-08-25 17:56:38,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:56:38" (3/3) ... [2023-08-25 17:56:38,588 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2023-08-25 17:56:38,604 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:56:38,604 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-25 17:56:38,604 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:56:38,689 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 17:56:38,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 82 transitions, 172 flow [2023-08-25 17:56:38,779 INFO L124 PetriNetUnfolderBase]: 3/81 cut-off events. [2023-08-25 17:56:38,779 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 17:56:38,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 3/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-25 17:56:38,784 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 82 transitions, 172 flow [2023-08-25 17:56:38,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:38,795 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:56:38,807 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:38,811 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:38,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:38,862 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2023-08-25 17:56:38,862 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:38,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-25 17:56:38,864 INFO L119 LiptonReduction]: Number of co-enabled transitions 960 [2023-08-25 17:56:41,681 INFO L134 LiptonReduction]: Checked pairs total: 1031 [2023-08-25 17:56:41,681 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-08-25 17:56:41,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:56:41,697 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;@68f06043, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:56:41,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-25 17:56:41,699 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:56:41,699 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-25 17:56:41,699 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:41,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:41,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 17:56:41,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 17:56:41,704 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:41,704 INFO L85 PathProgramCache]: Analyzing trace with hash 322254, now seen corresponding path program 1 times [2023-08-25 17:56:41,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:41,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238616661] [2023-08-25 17:56:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:41,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:56:41,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:56:41,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:56:41,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238616661] [2023-08-25 17:56:41,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238616661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:56:41,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:56:41,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:56:41,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516218146] [2023-08-25 17:56:41,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:56:41,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:56:41,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:56:41,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:56:41,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:56:41,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 166 [2023-08-25 17:56:41,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 11 transitions, 25 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:41,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:56:41,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 166 [2023-08-25 17:56:41,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:56:41,926 INFO L124 PetriNetUnfolderBase]: 6/19 cut-off events. [2023-08-25 17:56:41,926 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:41,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 19 events. 6/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 33 event pairs, 6 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 34. Up to 20 conditions per place. [2023-08-25 17:56:41,927 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 5 selfloop transitions, 0 changer transitions 2/7 dead transitions. [2023-08-25 17:56:41,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 31 flow [2023-08-25 17:56:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:56:41,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:56:41,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 165 transitions. [2023-08-25 17:56:41,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49698795180722893 [2023-08-25 17:56:41,940 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 165 transitions. [2023-08-25 17:56:41,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 165 transitions. [2023-08-25 17:56:41,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:56:41,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 165 transitions. [2023-08-25 17:56:41,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:41,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:41,953 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:41,955 INFO L175 Difference]: Start difference. First operand has 15 places, 11 transitions, 25 flow. Second operand 2 states and 165 transitions. [2023-08-25 17:56:41,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 31 flow [2023-08-25 17:56:41,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:56:41,958 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 12 flow [2023-08-25 17:56:41,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=12, PETRI_PLACES=11, PETRI_TRANSITIONS=5} [2023-08-25 17:56:41,962 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, -4 predicate places. [2023-08-25 17:56:41,962 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 12 flow [2023-08-25 17:56:41,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:56:41,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:41,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 17:56:41,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:56:41,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 17:56:41,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:41,964 INFO L85 PathProgramCache]: Analyzing trace with hash 322267, now seen corresponding path program 1 times [2023-08-25 17:56:41,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:41,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10205528] [2023-08-25 17:56:41,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:41,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:56:41,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 17:56:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:56:42,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 17:56:42,015 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 17:56:42,016 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr2ASSERT_VIOLATIONASSERT (9 of 10 remaining) [2023-08-25 17:56:42,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-08-25 17:56:42,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2023-08-25 17:56:42,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2023-08-25 17:56:42,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2023-08-25 17:56:42,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONASSERT (4 of 10 remaining) [2023-08-25 17:56:42,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-08-25 17:56:42,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-08-25 17:56:42,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-08-25 17:56:42,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-08-25 17:56:42,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:56:42,019 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-25 17:56:42,024 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:56:42,024 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:56:42,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:56:42 BasicIcfg [2023-08-25 17:56:42,038 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:56:42,038 INFO L158 Benchmark]: Toolchain (without parser) took 4394.24ms. Allocated memory was 364.9MB in the beginning and 469.8MB in the end (delta: 104.9MB). Free memory was 340.2MB in the beginning and 410.4MB in the end (delta: -70.1MB). Peak memory consumption was 34.2MB. Max. memory is 16.0GB. [2023-08-25 17:56:42,039 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 364.9MB. Free memory is still 341.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:56:42,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.58ms. Allocated memory is still 364.9MB. Free memory was 339.7MB in the beginning and 320.7MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 17:56:42,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.35ms. Allocated memory is still 364.9MB. Free memory was 320.7MB in the beginning and 318.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:56:42,040 INFO L158 Benchmark]: Boogie Preprocessor took 43.15ms. Allocated memory is still 364.9MB. Free memory was 318.7MB in the beginning and 317.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:56:42,040 INFO L158 Benchmark]: RCFGBuilder took 393.67ms. Allocated memory is still 364.9MB. Free memory was 317.2MB in the beginning and 303.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 17:56:42,041 INFO L158 Benchmark]: TraceAbstraction took 3455.56ms. Allocated memory was 364.9MB in the beginning and 469.8MB in the end (delta: 104.9MB). Free memory was 303.0MB in the beginning and 410.4MB in the end (delta: -107.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:56:42,043 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 364.9MB. Free memory is still 341.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 452.58ms. Allocated memory is still 364.9MB. Free memory was 339.7MB in the beginning and 320.7MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.35ms. Allocated memory is still 364.9MB. Free memory was 320.7MB in the beginning and 318.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 43.15ms. Allocated memory is still 364.9MB. Free memory was 318.7MB in the beginning and 317.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 393.67ms. Allocated memory is still 364.9MB. Free memory was 317.2MB in the beginning and 303.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3455.56ms. Allocated memory was 364.9MB in the beginning and 469.8MB in the end (delta: 104.9MB). Free memory was 303.0MB in the beginning and 410.4MB in the end (delta: -107.3MB). There was no memory consumed. 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: 2.9s, 75 PlacesBefore, 15 PlacesAfterwards, 74 TransitionsBefore, 11 TransitionsAfterwards, 960 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 84 TotalNumberOfCompositions, 1031 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 818, independent: 783, independent conditional: 0, independent unconditional: 783, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 530, independent: 516, independent conditional: 0, independent unconditional: 516, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 818, independent: 267, independent conditional: 0, independent unconditional: 267, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 530, unknown conditional: 0, unknown unconditional: 530] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: assertion can be violated assertion can be violated We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) [L18] 1 __assert_fail ("0", "13-privatized_18-first-reads_unknown_2_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [glob1=0, mutex1={3:0}] - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: 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: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 119 locations, 10 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: 3.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 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! [2023-08-25 17:56:42,065 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...