/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.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread/singleton.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 02:44:15,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 02:44:15,328 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 [2023-08-27 02:44:15,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 02:44:15,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 02:44:15,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 02:44:15,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 02:44:15,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 02:44:15,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 02:44:15,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 02:44:15,364 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 02:44:15,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 02:44:15,364 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 02:44:15,364 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 02:44:15,364 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 02:44:15,365 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 02:44:15,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 02:44:15,365 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 02:44:15,365 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 02:44:15,365 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 02:44:15,365 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 02:44:15,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 02:44:15,368 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 02:44:15,369 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 02:44:15,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 02:44:15,369 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 02:44:15,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 02:44:15,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 02:44:15,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 02:44:15,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 02:44:15,370 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 02:44:15,370 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 02:44:15,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 02:44:15,370 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 02:44:15,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 02:44:15,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 02:44:15,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 02:44:15,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 02:44:15,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 02:44:15,607 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 02:44:15,607 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 02:44:15,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2023-08-27 02:44:16,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 02:44:16,848 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 02:44:16,849 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2023-08-27 02:44:16,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fbb0e3f8/8581397d34214b07aae99c0a6ec4fa22/FLAGc91a40fe6 [2023-08-27 02:44:16,874 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fbb0e3f8/8581397d34214b07aae99c0a6ec4fa22 [2023-08-27 02:44:16,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 02:44:16,877 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 02:44:16,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 02:44:16,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 02:44:16,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 02:44:16,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:44:16" (1/1) ... [2023-08-27 02:44:16,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639df3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:16, skipping insertion in model container [2023-08-27 02:44:16,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:44:16" (1/1) ... [2023-08-27 02:44:16,927 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 02:44:17,052 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-27 02:44:17,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 02:44:17,296 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 02:44:17,315 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-27 02:44:17,318 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [283] [2023-08-27 02:44:17,333 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [283] [2023-08-27 02:44:17,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 02:44:17,392 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 02:44:17,393 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 02:44:17,393 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 02:44:17,398 INFO L206 MainTranslator]: Completed translation [2023-08-27 02:44:17,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17 WrapperNode [2023-08-27 02:44:17,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 02:44:17,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 02:44:17,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 02:44:17,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 02:44:17,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (1/1) ... [2023-08-27 02:44:17,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (1/1) ... [2023-08-27 02:44:17,454 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 38 [2023-08-27 02:44:17,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 02:44:17,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 02:44:17,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 02:44:17,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 02:44:17,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (1/1) ... [2023-08-27 02:44:17,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (1/1) ... [2023-08-27 02:44:17,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (1/1) ... [2023-08-27 02:44:17,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (1/1) ... [2023-08-27 02:44:17,478 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (1/1) ... [2023-08-27 02:44:17,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (1/1) ... [2023-08-27 02:44:17,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (1/1) ... [2023-08-27 02:44:17,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (1/1) ... [2023-08-27 02:44:17,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 02:44:17,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 02:44:17,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 02:44:17,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 02:44:17,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (1/1) ... [2023-08-27 02:44:17,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 02:44:17,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 02:44:17,543 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) [2023-08-27 02:44:17,546 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 [2023-08-27 02:44:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 02:44:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 02:44:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 02:44:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 02:44:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 02:44:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-08-27 02:44:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-08-27 02:44:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 02:44:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 02:44:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 02:44:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 02:44:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 02:44:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 02:44:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 02:44:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-27 02:44:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 02:44:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 02:44:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 02:44:17,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 02:44:17,603 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 02:44:17,726 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 02:44:17,727 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 02:44:17,858 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 02:44:17,863 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 02:44:17,863 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 02:44:17,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:44:17 BoogieIcfgContainer [2023-08-27 02:44:17,864 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 02:44:17,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 02:44:17,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 02:44:17,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 02:44:17,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 02:44:16" (1/3) ... [2023-08-27 02:44:17,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cf5ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 02:44:17, skipping insertion in model container [2023-08-27 02:44:17,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:44:17" (2/3) ... [2023-08-27 02:44:17,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cf5ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 02:44:17, skipping insertion in model container [2023-08-27 02:44:17,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:44:17" (3/3) ... [2023-08-27 02:44:17,878 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2023-08-27 02:44:17,890 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 02:44:17,890 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 02:44:17,890 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 02:44:17,989 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-08-27 02:44:18,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 192 transitions, 491 flow [2023-08-27 02:44:18,067 INFO L124 PetriNetUnfolderBase]: 7/129 cut-off events. [2023-08-27 02:44:18,067 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 02:44:18,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 129 events. 7/129 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2023-08-27 02:44:18,071 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 192 transitions, 491 flow [2023-08-27 02:44:18,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 118 transitions, 287 flow [2023-08-27 02:44:18,080 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 02:44:18,086 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 118 transitions, 287 flow [2023-08-27 02:44:18,088 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 118 transitions, 287 flow [2023-08-27 02:44:18,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 118 transitions, 287 flow [2023-08-27 02:44:18,106 INFO L124 PetriNetUnfolderBase]: 5/118 cut-off events. [2023-08-27 02:44:18,106 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 02:44:18,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 118 events. 5/118 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 44 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2023-08-27 02:44:18,108 INFO L119 LiptonReduction]: Number of co-enabled transitions 1344 [2023-08-27 02:44:20,371 INFO L134 LiptonReduction]: Checked pairs total: 2923 [2023-08-27 02:44:20,371 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-08-27 02:44:20,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 02:44:20,409 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;@3c304471, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 02:44:20,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-27 02:44:20,426 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 02:44:20,426 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2023-08-27 02:44:20,426 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 02:44:20,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 02:44:20,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 02:44:20,427 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-08-27 02:44:20,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 02:44:20,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1772502243, now seen corresponding path program 1 times [2023-08-27 02:44:20,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 02:44:20,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899818419] [2023-08-27 02:44:20,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 02:44:20,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 02:44:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:44:20,612 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 02:44:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:44:20,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 02:44:20,697 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 02:44:20,697 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (11 of 12 remaining) [2023-08-27 02:44:20,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2023-08-27 02:44:20,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2023-08-27 02:44:20,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2023-08-27 02:44:20,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2023-08-27 02:44:20,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2023-08-27 02:44:20,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2023-08-27 02:44:20,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-08-27 02:44:20,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-08-27 02:44:20,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-08-27 02:44:20,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-08-27 02:44:20,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-08-27 02:44:20,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 02:44:20,701 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 02:44:20,704 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 02:44:20,704 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 02:44:20,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 02:44:20 BasicIcfg [2023-08-27 02:44:20,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 02:44:20,755 INFO L158 Benchmark]: Toolchain (without parser) took 3878.70ms. Allocated memory was 406.8MB in the beginning and 597.7MB in the end (delta: 190.8MB). Free memory was 381.1MB in the beginning and 452.7MB in the end (delta: -71.6MB). Peak memory consumption was 121.8MB. Max. memory is 16.0GB. [2023-08-27 02:44:20,756 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 406.8MB. Free memory was 383.3MB in the beginning and 383.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 02:44:20,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.38ms. Allocated memory is still 406.8MB. Free memory was 380.8MB in the beginning and 347.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-27 02:44:20,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.23ms. Allocated memory is still 406.8MB. Free memory was 347.2MB in the beginning and 344.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 02:44:20,757 INFO L158 Benchmark]: Boogie Preprocessor took 38.23ms. Allocated memory is still 406.8MB. Free memory was 344.8MB in the beginning and 343.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 02:44:20,757 INFO L158 Benchmark]: RCFGBuilder took 370.23ms. Allocated memory is still 406.8MB. Free memory was 343.3MB in the beginning and 375.2MB in the end (delta: -31.9MB). Peak memory consumption was 14.4MB. Max. memory is 16.0GB. [2023-08-27 02:44:20,757 INFO L158 Benchmark]: TraceAbstraction took 2879.83ms. Allocated memory was 406.8MB in the beginning and 597.7MB in the end (delta: 190.8MB). Free memory was 374.5MB in the beginning and 452.7MB in the end (delta: -78.2MB). Peak memory consumption was 113.7MB. Max. memory is 16.0GB. [2023-08-27 02:44:20,759 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 406.8MB. Free memory was 383.3MB in the beginning and 383.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 522.38ms. Allocated memory is still 406.8MB. Free memory was 380.8MB in the beginning and 347.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.23ms. Allocated memory is still 406.8MB. Free memory was 347.2MB in the beginning and 344.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 38.23ms. Allocated memory is still 406.8MB. Free memory was 344.8MB in the beginning and 343.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 370.23ms. Allocated memory is still 406.8MB. Free memory was 343.3MB in the beginning and 375.2MB in the end (delta: -31.9MB). Peak memory consumption was 14.4MB. Max. memory is 16.0GB. * TraceAbstraction took 2879.83ms. Allocated memory was 406.8MB in the beginning and 597.7MB in the end (delta: 190.8MB). Free memory was 374.5MB in the beginning and 452.7MB in the end (delta: -78.2MB). Peak memory consumption was 113.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 283]: Unsoundness Warning unspecified type, defaulting to int C: short [283] - GenericResultAtLocation [Line: 283]: Unsoundness Warning unspecified type, defaulting to int C: short [283] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 132 PlacesBefore, 55 PlacesAfterwards, 118 TransitionsBefore, 41 TransitionsAfterwards, 1344 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 77 TotalNumberOfCompositions, 2923 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2106, independent: 1994, independent conditional: 0, independent unconditional: 1994, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 723, independent: 681, independent conditional: 0, independent unconditional: 681, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2106, independent: 1313, independent conditional: 0, independent unconditional: 1313, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 723, unknown conditional: 0, unknown unconditional: 723] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 20]: assertion can be violated assertion can be violated We found a FailurePath: [L1124] 0 char *v; [L1161] 0 pthread_t t; [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, pthread_create(&t, 0, thread0, 0)=-2147483648, t={6:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t1, 0, thread1, 0)=-2147483647, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={0:0}] [L1148] 1 \read(t1) VAL [\read(t1)=-2147483647, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) [L1128] 2 return 0; [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=-2147483647, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t2, 0, thread2, 0)=-2147483646, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t3, 0, thread3, 0)=-2147483645, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t4, 0, thread2, 0)=-2147483644, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t5, 0, thread2, 0)=-2147483643, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1133] 6 v[0] = 'X' [L1135] 6 return 0; [L1133] 5 v[0] = 'X' [L1135] 5 return 0; [L1153] 1 \read(t2) VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1133] 3 v[0] = 'X' [L1135] 3 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1154] 1 \read(t3) VAL [\read(t3)=-2147483645, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1140] 4 v[0] = 'Y' [L1142] 4 return 0; [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=-2147483645, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1155] 1 \read(t4) VAL [\read(t4)=-2147483644, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=-2147483644, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1156] 1 \read(t5) VAL [\read(t5)=-2147483643, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=-2147483643, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={7:0}, t3={8:0}, t4={9:0}, t5={10:0}, v={3:0}] [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1163] 0 \read(t) VAL [\read(t)=-2147483648, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={6:0}, v={3:0}] [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\read(t)=-2147483648, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={6:0}, v={3:0}] [L1164] EXPR 0 v[0] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X') [L1123] COND TRUE 0 !expression [L1123] CALL 0 reach_error() [L20] COND FALSE 0 !(0) [L20] 0 __assert_fail ("0", "singleton.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, v={3:0}] - UnprovableResult [Line: 1150]: 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: 1152]: 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: 1147]: 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: 1149]: 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: 1151]: 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: 1162]: 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: 1151]: 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: 1149]: 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: 1152]: 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: 1150]: 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: 1147]: 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 11 procedures, 221 locations, 12 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: 2.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 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! [2023-08-27 02:44:20,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...