/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 12:25:50,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 12:25:50,959 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 12:25:50,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 12:25:50,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 12:25:50,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 12:25:50,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 12:25:50,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 12:25:50,997 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 12:25:50,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 12:25:50,997 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 12:25:50,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 12:25:50,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 12:25:50,998 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 12:25:50,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 12:25:50,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 12:25:50,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 12:25:50,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 12:25:50,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 12:25:50,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 12:25:51,000 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 12:25:51,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 12:25:51,003 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 12:25:51,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 12:25:51,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 12:25:51,005 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 12:25:51,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 12:25:51,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 12:25:51,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 12:25:51,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 12:25:51,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 12:25:51,006 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 12:25:51,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 12:25:51,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 12:25:51,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 12:25:51,007 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-08-26 12:25:51,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 12:25:51,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 12:25:51,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 12:25:51,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 12:25:51,252 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 12:25:51,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-08-26 12:25:52,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 12:25:52,353 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 12:25:52,354 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-08-26 12:25:52,376 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7376c1a35/10cdd61317944721bbd8e17a95b9d9fc/FLAG3e5af3bb4 [2023-08-26 12:25:52,711 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7376c1a35/10cdd61317944721bbd8e17a95b9d9fc [2023-08-26 12:25:52,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 12:25:52,715 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 12:25:52,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 12:25:52,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 12:25:52,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 12:25:52,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:25:52" (1/1) ... [2023-08-26 12:25:52,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1935687c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:52, skipping insertion in model container [2023-08-26 12:25:52,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:25:52" (1/1) ... [2023-08-26 12:25:52,759 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 12:25:52,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 12:25:52,999 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 12:25:53,024 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 12:25:53,025 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-26 12:25:53,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 12:25:53,066 INFO L206 MainTranslator]: Completed translation [2023-08-26 12:25:53,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53 WrapperNode [2023-08-26 12:25:53,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 12:25:53,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 12:25:53,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 12:25:53,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 12:25:53,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (1/1) ... [2023-08-26 12:25:53,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (1/1) ... [2023-08-26 12:25:53,111 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-08-26 12:25:53,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 12:25:53,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 12:25:53,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 12:25:53,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 12:25:53,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (1/1) ... [2023-08-26 12:25:53,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (1/1) ... [2023-08-26 12:25:53,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (1/1) ... [2023-08-26 12:25:53,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (1/1) ... [2023-08-26 12:25:53,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (1/1) ... [2023-08-26 12:25:53,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (1/1) ... [2023-08-26 12:25:53,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (1/1) ... [2023-08-26 12:25:53,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (1/1) ... [2023-08-26 12:25:53,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 12:25:53,142 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 12:25:53,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 12:25:53,142 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 12:25:53,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (1/1) ... [2023-08-26 12:25:53,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 12:25:53,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 12:25:53,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 12:25:53,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 12:25:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 12:25:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 12:25:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 12:25:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 12:25:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 12:25:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 12:25:53,192 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 12:25:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 12:25:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 12:25:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 12:25:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 12:25:53,194 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 12:25:53,285 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 12:25:53,286 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 12:25:53,426 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 12:25:53,430 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 12:25:53,430 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 12:25:53,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:25:53 BoogieIcfgContainer [2023-08-26 12:25:53,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 12:25:53,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 12:25:53,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 12:25:53,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 12:25:53,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:25:52" (1/3) ... [2023-08-26 12:25:53,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659590d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:25:53, skipping insertion in model container [2023-08-26 12:25:53,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:25:53" (2/3) ... [2023-08-26 12:25:53,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659590d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:25:53, skipping insertion in model container [2023-08-26 12:25:53,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:25:53" (3/3) ... [2023-08-26 12:25:53,436 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2023-08-26 12:25:53,447 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 12:25:53,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-26 12:25:53,448 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 12:25:53,487 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 12:25:53,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 67 transitions, 142 flow [2023-08-26 12:25:53,548 INFO L124 PetriNetUnfolderBase]: 3/66 cut-off events. [2023-08-26 12:25:53,548 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 12:25:53,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 3/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-08-26 12:25:53,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 67 transitions, 142 flow [2023-08-26 12:25:53,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 59 transitions, 121 flow [2023-08-26 12:25:53,560 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 12:25:53,569 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 59 transitions, 121 flow [2023-08-26 12:25:53,572 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 59 transitions, 121 flow [2023-08-26 12:25:53,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 59 transitions, 121 flow [2023-08-26 12:25:53,591 INFO L124 PetriNetUnfolderBase]: 3/59 cut-off events. [2023-08-26 12:25:53,591 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 12:25:53,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 3/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-08-26 12:25:53,591 INFO L119 LiptonReduction]: Number of co-enabled transitions 432 [2023-08-26 12:25:55,457 INFO L134 LiptonReduction]: Checked pairs total: 658 [2023-08-26 12:25:55,457 INFO L136 LiptonReduction]: Total number of compositions: 67 [2023-08-26 12:25:55,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 12:25:55,469 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;@1df092b8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 12:25:55,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-26 12:25:55,470 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 12:25:55,470 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-08-26 12:25:55,470 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 12:25:55,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 12:25:55,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 12:25:55,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-08-26 12:25:55,474 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 12:25:55,474 INFO L85 PathProgramCache]: Analyzing trace with hash 273, now seen corresponding path program 1 times [2023-08-26 12:25:55,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 12:25:55,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721272163] [2023-08-26 12:25:55,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 12:25:55,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 12:25:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 12:25:55,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 12:25:55,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 12:25:55,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721272163] [2023-08-26 12:25:55,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721272163] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 12:25:55,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 12:25:55,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 12:25:55,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225578591] [2023-08-26 12:25:55,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 12:25:55,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 12:25:55,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 12:25:55,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 12:25:55,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 12:25:55,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 134 [2023-08-26 12:25:55,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 11 transitions, 25 flow. Second operand has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 12:25:55,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 12:25:55,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 134 [2023-08-26 12:25:55,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 12:25:55,604 INFO L124 PetriNetUnfolderBase]: 12/33 cut-off events. [2023-08-26 12:25:55,605 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 12:25:55,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 33 events. 12/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 82 event pairs, 12 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 62. Up to 34 conditions per place. [2023-08-26 12:25:55,606 INFO L140 encePairwiseOnDemand]: 132/134 looper letters, 9 selfloop transitions, 0 changer transitions 0/9 dead transitions. [2023-08-26 12:25:55,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 9 transitions, 39 flow [2023-08-26 12:25:55,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 12:25:55,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 12:25:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 135 transitions. [2023-08-26 12:25:55,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.503731343283582 [2023-08-26 12:25:55,614 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 135 transitions. [2023-08-26 12:25:55,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 135 transitions. [2023-08-26 12:25:55,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 12:25:55,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 135 transitions. [2023-08-26 12:25:55,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 67.5) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 12:25:55,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 12:25:55,619 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 12:25:55,620 INFO L175 Difference]: Start difference. First operand has 15 places, 11 transitions, 25 flow. Second operand 2 states and 135 transitions. [2023-08-26 12:25:55,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 9 transitions, 39 flow [2023-08-26 12:25:55,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 9 transitions, 38 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 12:25:55,622 INFO L231 Difference]: Finished difference. Result has 13 places, 9 transitions, 20 flow [2023-08-26 12:25:55,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=20, PETRI_PLACES=13, PETRI_TRANSITIONS=9} [2023-08-26 12:25:55,626 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, -2 predicate places. [2023-08-26 12:25:55,626 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 9 transitions, 20 flow [2023-08-26 12:25:55,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 12:25:55,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 12:25:55,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 12:25:55,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 12:25:55,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-08-26 12:25:55,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 12:25:55,627 INFO L85 PathProgramCache]: Analyzing trace with hash 267057, now seen corresponding path program 1 times [2023-08-26 12:25:55,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 12:25:55,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960614820] [2023-08-26 12:25:55,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 12:25:55,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 12:25:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 12:25:55,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 12:25:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 12:25:55,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 12:25:55,683 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 12:25:55,684 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2023-08-26 12:25:55,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-08-26 12:25:55,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-08-26 12:25:55,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-08-26 12:25:55,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-08-26 12:25:55,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2023-08-26 12:25:55,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 7 remaining) [2023-08-26 12:25:55,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 12:25:55,687 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-26 12:25:55,692 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 12:25:55,692 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 12:25:55,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:25:55 BasicIcfg [2023-08-26 12:25:55,707 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 12:25:55,708 INFO L158 Benchmark]: Toolchain (without parser) took 2994.51ms. Allocated memory was 383.8MB in the beginning and 463.5MB in the end (delta: 79.7MB). Free memory was 357.7MB in the beginning and 426.4MB in the end (delta: -68.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.0GB. [2023-08-26 12:25:55,709 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 383.8MB. Free memory was 360.9MB in the beginning and 360.8MB in the end (delta: 94.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 12:25:55,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.18ms. Allocated memory is still 383.8MB. Free memory was 357.7MB in the beginning and 338.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 12:25:55,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.39ms. Allocated memory is still 383.8MB. Free memory was 338.8MB in the beginning and 336.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 12:25:55,711 INFO L158 Benchmark]: Boogie Preprocessor took 29.30ms. Allocated memory is still 383.8MB. Free memory was 336.8MB in the beginning and 335.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 12:25:55,717 INFO L158 Benchmark]: RCFGBuilder took 289.29ms. Allocated memory is still 383.8MB. Free memory was 335.3MB in the beginning and 322.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 12:25:55,718 INFO L158 Benchmark]: TraceAbstraction took 2274.79ms. Allocated memory was 383.8MB in the beginning and 463.5MB in the end (delta: 79.7MB). Free memory was 321.5MB in the beginning and 426.4MB in the end (delta: -104.9MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 12:25:55,722 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 383.8MB. Free memory was 360.9MB in the beginning and 360.8MB in the end (delta: 94.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 350.18ms. Allocated memory is still 383.8MB. Free memory was 357.7MB in the beginning and 338.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.39ms. Allocated memory is still 383.8MB. Free memory was 338.8MB in the beginning and 336.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.30ms. Allocated memory is still 383.8MB. Free memory was 336.8MB in the beginning and 335.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 289.29ms. Allocated memory is still 383.8MB. Free memory was 335.3MB in the beginning and 322.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2274.79ms. Allocated memory was 383.8MB in the beginning and 463.5MB in the end (delta: 79.7MB). Free memory was 321.5MB in the beginning and 426.4MB in the end (delta: -104.9MB). 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: 1.9s, 60 PlacesBefore, 15 PlacesAfterwards, 59 TransitionsBefore, 11 TransitionsAfterwards, 432 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 658 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 457, independent: 409, independent conditional: 0, independent unconditional: 409, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 260, independent: 241, independent conditional: 0, independent unconditional: 241, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 457, independent: 168, independent conditional: 0, independent unconditional: 168, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 260, unknown conditional: 0, unknown unconditional: 260] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 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 == 0)) [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_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [glob1=0, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 7 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: 2.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, 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, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-26 12:25:55,738 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...