/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 PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 11:01:36,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 11:01:36,549 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 [2023-08-24 11:01:36,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 11:01:36,552 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 11:01:36,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 11:01:36,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 11:01:36,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 11:01:36,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 11:01:36,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 11:01:36,568 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 11:01:36,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 11:01:36,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 11:01:36,569 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 11:01:36,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 11:01:36,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 11:01:36,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 11:01:36,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 11:01:36,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 11:01:36,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 11:01:36,570 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 11:01:36,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 11:01:36,571 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 11:01:36,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 11:01:36,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 11:01:36,571 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 11:01:36,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 11:01:36,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 11:01:36,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 11:01:36,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 11:01:36,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 11:01:36,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 11:01:36,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 11:01:36,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 11:01:36,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 11:01:36,573 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-24 11:01:36,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 11:01:36,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 11:01:36,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 11:01:36,794 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 11:01:36,794 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 11:01:36,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2023-08-24 11:01:37,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 11:01:37,980 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 11:01:37,981 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2023-08-24 11:01:38,003 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffd6b1991/5ca263c9fb1040189b03f207e85bc146/FLAGf9bd386c4 [2023-08-24 11:01:38,016 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffd6b1991/5ca263c9fb1040189b03f207e85bc146 [2023-08-24 11:01:38,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 11:01:38,021 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 11:01:38,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 11:01:38,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 11:01:38,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 11:01:38,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e58001a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38, skipping insertion in model container [2023-08-24 11:01:38,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,076 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 11:01:38,230 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 11:01:38,395 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2023-08-24 11:01:38,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 11:01:38,414 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 11:01:38,429 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 11:01:38,431 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [283] [2023-08-24 11:01:38,432 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [283] [2023-08-24 11:01:38,442 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2023-08-24 11:01:38,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 11:01:38,484 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 11:01:38,485 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 11:01:38,485 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 11:01:38,489 INFO L206 MainTranslator]: Completed translation [2023-08-24 11:01:38,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38 WrapperNode [2023-08-24 11:01:38,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 11:01:38,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 11:01:38,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 11:01:38,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 11:01:38,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,518 INFO L138 Inliner]: procedures = 325, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2023-08-24 11:01:38,519 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 11:01:38,519 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 11:01:38,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 11:01:38,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 11:01:38,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 11:01:38,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 11:01:38,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 11:01:38,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 11:01:38,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (1/1) ... [2023-08-24 11:01:38,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 11:01:38,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 11:01:38,587 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) [2023-08-24 11:01:38,603 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 [2023-08-24 11:01:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 11:01:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 11:01:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 11:01:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 11:01:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 11:01:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-08-24 11:01:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-08-24 11:01:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 11:01:38,626 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 11:01:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 11:01:38,627 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 11:01:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-24 11:01:38,627 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-24 11:01:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 11:01:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-24 11:01:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 11:01:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 11:01:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 11:01:38,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 11:01:38,628 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 11:01:38,731 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 11:01:38,732 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 11:01:38,936 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 11:01:38,941 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 11:01:38,941 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 11:01:38,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 11:01:38 BoogieIcfgContainer [2023-08-24 11:01:38,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 11:01:38,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 11:01:38,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 11:01:38,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 11:01:38,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 11:01:38" (1/3) ... [2023-08-24 11:01:38,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7963f58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 11:01:38, skipping insertion in model container [2023-08-24 11:01:38,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:38" (2/3) ... [2023-08-24 11:01:38,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7963f58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 11:01:38, skipping insertion in model container [2023-08-24 11:01:38,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 11:01:38" (3/3) ... [2023-08-24 11:01:38,947 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2023-08-24 11:01:38,959 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 11:01:38,959 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 11:01:38,959 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 11:01:39,042 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-08-24 11:01:39,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 188 transitions, 483 flow [2023-08-24 11:01:39,141 INFO L124 PetriNetUnfolderBase]: 6/125 cut-off events. [2023-08-24 11:01:39,142 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-24 11:01:39,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 125 events. 6/125 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2023-08-24 11:01:39,147 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 188 transitions, 483 flow [2023-08-24 11:01:39,154 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 116 transitions, 283 flow [2023-08-24 11:01:39,157 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 11:01:39,167 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 116 transitions, 283 flow [2023-08-24 11:01:39,173 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 116 transitions, 283 flow [2023-08-24 11:01:39,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 116 transitions, 283 flow [2023-08-24 11:01:39,207 INFO L124 PetriNetUnfolderBase]: 5/116 cut-off events. [2023-08-24 11:01:39,207 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-24 11:01:39,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 116 events. 5/116 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. 0/111 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2023-08-24 11:01:39,212 INFO L119 LiptonReduction]: Number of co-enabled transitions 1344 [2023-08-24 11:01:41,251 INFO L134 LiptonReduction]: Checked pairs total: 2911 [2023-08-24 11:01:41,251 INFO L136 LiptonReduction]: Total number of compositions: 75 [2023-08-24 11:01:41,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 11:01:41,263 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;@57de3a15, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 11:01:41,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-24 11:01:41,269 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 11:01:41,269 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2023-08-24 11:01:41,269 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-24 11:01:41,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 11:01:41,270 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] [2023-08-24 11:01:41,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-08-24 11:01:41,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 11:01:41,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1028847263, now seen corresponding path program 1 times [2023-08-24 11:01:41,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 11:01:41,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504567162] [2023-08-24 11:01:41,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 11:01:41,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 11:01:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 11:01:41,491 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 11:01:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 11:01:41,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 11:01:41,557 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 11:01:41,558 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2023-08-24 11:01:41,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2023-08-24 11:01:41,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2023-08-24 11:01:41,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2023-08-24 11:01:41,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2023-08-24 11:01:41,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2023-08-24 11:01:41,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2023-08-24 11:01:41,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-08-24 11:01:41,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-08-24 11:01:41,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-08-24 11:01:41,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-08-24 11:01:41,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-08-24 11:01:41,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 11:01:41,561 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 11:01:41,564 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 11:01:41,565 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 11:01:41,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 11:01:41 BasicIcfg [2023-08-24 11:01:41,612 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 11:01:41,612 INFO L158 Benchmark]: Toolchain (without parser) took 3590.90ms. Allocated memory was 348.1MB in the beginning and 444.6MB in the end (delta: 96.5MB). Free memory was 322.5MB in the beginning and 325.3MB in the end (delta: -2.8MB). Peak memory consumption was 96.0MB. Max. memory is 16.0GB. [2023-08-24 11:01:41,613 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 348.1MB. Free memory is still 324.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 11:01:41,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.77ms. Allocated memory is still 348.1MB. Free memory was 322.5MB in the beginning and 289.1MB in the end (delta: 33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-24 11:01:41,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.41ms. Allocated memory is still 348.1MB. Free memory was 289.1MB in the beginning and 287.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 11:01:41,614 INFO L158 Benchmark]: Boogie Preprocessor took 24.73ms. Allocated memory is still 348.1MB. Free memory was 287.0MB in the beginning and 285.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 11:01:41,614 INFO L158 Benchmark]: RCFGBuilder took 398.43ms. Allocated memory is still 348.1MB. Free memory was 285.5MB in the beginning and 321.2MB in the end (delta: -35.8MB). Peak memory consumption was 18.3MB. Max. memory is 16.0GB. [2023-08-24 11:01:41,614 INFO L158 Benchmark]: TraceAbstraction took 2667.65ms. Allocated memory was 348.1MB in the beginning and 444.6MB in the end (delta: 96.5MB). Free memory was 321.2MB in the beginning and 325.3MB in the end (delta: -4.0MB). Peak memory consumption was 92.4MB. Max. memory is 16.0GB. [2023-08-24 11:01:41,616 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 348.1MB. Free memory is still 324.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 466.77ms. Allocated memory is still 348.1MB. Free memory was 322.5MB in the beginning and 289.1MB in the end (delta: 33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 28.41ms. Allocated memory is still 348.1MB. Free memory was 289.1MB in the beginning and 287.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.73ms. Allocated memory is still 348.1MB. Free memory was 287.0MB in the beginning and 285.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 398.43ms. Allocated memory is still 348.1MB. Free memory was 285.5MB in the beginning and 321.2MB in the end (delta: -35.8MB). Peak memory consumption was 18.3MB. Max. memory is 16.0GB. * TraceAbstraction took 2667.65ms. Allocated memory was 348.1MB in the beginning and 444.6MB in the end (delta: 96.5MB). Free memory was 321.2MB in the beginning and 325.3MB in the end (delta: -4.0MB). Peak memory consumption was 92.4MB. 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: 2.1s, 130 PlacesBefore, 55 PlacesAfterwards, 116 TransitionsBefore, 41 TransitionsAfterwards, 1344 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 75 TotalNumberOfCompositions, 2911 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2101, independent: 1992, independent conditional: 0, independent unconditional: 1992, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 711, independent: 674, independent conditional: 0, independent unconditional: 674, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2101, independent: 1318, independent conditional: 0, independent unconditional: 1318, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 711, unknown conditional: 0, unknown unconditional: 711] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 46, Positive conditional cache size: 0, Positive unconditional cache size: 46, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1123]: a call to reach_error is reachable a call to reach_error is reachable 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)=-6, 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)=-5, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={0:0}] [L1148] 1 \read(t1) VAL [\read(t1)=-5, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) [L1128] 2 return 0; [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=-5, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, 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)=-4, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, 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)=-3, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, 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)=-2, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, 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)=-1, t1={5:0}, t2={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, 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)=-4, \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={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1133] 3 v[0] = 'X' [L1135] 3 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=-4, \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={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1154] 1 \read(t3) VAL [\read(t3)=-3, \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={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1140] 4 v[0] = 'Y' [L1142] 4 return 0; [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=-3, \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={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1155] 1 \read(t4) VAL [\read(t4)=-2, \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={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=-2, \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={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1156] 1 \read(t5) VAL [\read(t5)=-1, \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={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, v={3:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=-1, \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={8:0}, t3={7:0}, t4={10:0}, t5={9:0}, 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)=-6, \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)=-6, \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] 0 reach_error() VAL [\old(expression)=0, \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}, expression=0, v={3:0}] - 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: 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: 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: 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: 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: 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 218 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: 2.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, 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, 0.2s 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! [2023-08-24 11:01:41,632 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...