/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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 10:21:06,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 10:21:06,745 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 10:21:06,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 10:21:06,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 10:21:06,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 10:21:06,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 10:21:06,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 10:21:06,787 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 10:21:06,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 10:21:06,791 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 10:21:06,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 10:21:06,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 10:21:06,793 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 10:21:06,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 10:21:06,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 10:21:06,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 10:21:06,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 10:21:06,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 10:21:06,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 10:21:06,795 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 10:21:06,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 10:21:06,796 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 10:21:06,796 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 10:21:06,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 10:21:06,797 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 10:21:06,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 10:21:06,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:21:06,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 10:21:06,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 10:21:06,798 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 10:21:06,798 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 10:21:06,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 10:21:06,799 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 10:21:06,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 10:21:06,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 10:21:07,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 10:21:07,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 10:21:07,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 10:21:07,162 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 10:21:07,163 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 10:21:07,164 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-08-27 10:21:08,430 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 10:21:08,765 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 10:21:08,766 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_4-container_of.i [2023-08-27 10:21:08,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8af28dca4/2bcb51d5c4f04b45a26ea3576c771b2f/FLAG3c8e97562 [2023-08-27 10:21:08,807 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8af28dca4/2bcb51d5c4f04b45a26ea3576c771b2f [2023-08-27 10:21:08,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 10:21:08,813 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 10:21:08,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 10:21:08,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 10:21:08,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 10:21:08,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:21:08" (1/1) ... [2023-08-27 10:21:08,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b6804eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:08, skipping insertion in model container [2023-08-27 10:21:08,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:21:08" (1/1) ... [2023-08-27 10:21:08,888 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 10:21:08,991 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-27 10:21:09,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:21:09,569 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 10:21:09,581 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-27 10:21:09,598 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [251] [2023-08-27 10:21:09,600 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [251] [2023-08-27 10:21:09,605 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [735] [2023-08-27 10:21:09,623 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned long [1691] [2023-08-27 10:21:09,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:21:09,779 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:21:09,779 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:21:09,779 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:21:09,785 INFO L206 MainTranslator]: Completed translation [2023-08-27 10:21:09,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09 WrapperNode [2023-08-27 10:21:09,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 10:21:09,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 10:21:09,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 10:21:09,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 10:21:09,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (1/1) ... [2023-08-27 10:21:09,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (1/1) ... [2023-08-27 10:21:09,873 INFO L138 Inliner]: procedures = 469, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 164 [2023-08-27 10:21:09,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 10:21:09,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 10:21:09,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 10:21:09,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 10:21:09,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (1/1) ... [2023-08-27 10:21:09,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (1/1) ... [2023-08-27 10:21:09,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (1/1) ... [2023-08-27 10:21:09,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (1/1) ... [2023-08-27 10:21:09,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (1/1) ... [2023-08-27 10:21:09,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (1/1) ... [2023-08-27 10:21:09,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (1/1) ... [2023-08-27 10:21:09,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (1/1) ... [2023-08-27 10:21:09,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 10:21:09,940 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 10:21:09,940 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 10:21:09,940 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 10:21:09,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (1/1) ... [2023-08-27 10:21:09,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:21:09,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 10:21:09,979 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 10:21:09,993 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 10:21:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 10:21:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 10:21:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 10:21:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 10:21:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 10:21:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 10:21:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-27 10:21:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 10:21:10,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 10:21:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-27 10:21:10,014 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-27 10:21:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 10:21:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 10:21:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 10:21:10,015 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 10:21:10,257 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 10:21:10,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 10:21:10,465 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 10:21:10,516 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 10:21:10,517 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 10:21:10,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:21:10 BoogieIcfgContainer [2023-08-27 10:21:10,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 10:21:10,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 10:21:10,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 10:21:10,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 10:21:10,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:21:08" (1/3) ... [2023-08-27 10:21:10,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678aa710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:21:10, skipping insertion in model container [2023-08-27 10:21:10,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:09" (2/3) ... [2023-08-27 10:21:10,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678aa710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:21:10, skipping insertion in model container [2023-08-27 10:21:10,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:21:10" (3/3) ... [2023-08-27 10:21:10,529 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2023-08-27 10:21:10,545 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 10:21:10,545 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-27 10:21:10,545 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 10:21:10,602 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 10:21:10,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 183 transitions, 382 flow [2023-08-27 10:21:10,754 INFO L124 PetriNetUnfolderBase]: 14/237 cut-off events. [2023-08-27 10:21:10,754 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 10:21:10,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 237 events. 14/237 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 522 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 123. Up to 4 conditions per place. [2023-08-27 10:21:10,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 183 transitions, 382 flow [2023-08-27 10:21:10,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 180 transitions, 372 flow [2023-08-27 10:21:10,767 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 10:21:10,776 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 180 transitions, 372 flow [2023-08-27 10:21:10,778 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 180 transitions, 372 flow [2023-08-27 10:21:10,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 180 transitions, 372 flow [2023-08-27 10:21:10,816 INFO L124 PetriNetUnfolderBase]: 13/236 cut-off events. [2023-08-27 10:21:10,816 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 10:21:10,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 236 events. 13/236 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 537 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 122. Up to 4 conditions per place. [2023-08-27 10:21:10,821 INFO L119 LiptonReduction]: Number of co-enabled transitions 4640 [2023-08-27 10:21:19,768 INFO L134 LiptonReduction]: Checked pairs total: 12796 [2023-08-27 10:21:19,769 INFO L136 LiptonReduction]: Total number of compositions: 191 [2023-08-27 10:21:19,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 10:21:19,786 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;@1170e07a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 10:21:19,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-27 10:21:19,791 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 10:21:19,791 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-27 10:21:19,792 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:21:19,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:21:19,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 10:21:19,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (and 11 more)] === [2023-08-27 10:21:19,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:21:19,797 INFO L85 PathProgramCache]: Analyzing trace with hash 22383384, now seen corresponding path program 1 times [2023-08-27 10:21:19,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:21:19,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116416559] [2023-08-27 10:21:19,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:21:19,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:21:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:21:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:21:20,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:21:20,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116416559] [2023-08-27 10:21:20,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116416559] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:21:20,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:21:20,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:21:20,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577184104] [2023-08-27 10:21:20,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:21:20,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:21:20,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:21:20,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:21:20,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:21:20,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 374 [2023-08-27 10:21:20,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2023-08-27 10:21:20,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:21:20,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 374 [2023-08-27 10:21:20,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:21:20,553 INFO L124 PetriNetUnfolderBase]: 1310/2209 cut-off events. [2023-08-27 10:21:20,554 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-08-27 10:21:20,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4360 conditions, 2209 events. 1310/2209 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 12479 event pairs, 1309 based on Foata normal form. 0/1483 useless extension candidates. Maximal degree in co-relation 4252. Up to 2120 conditions per place. [2023-08-27 10:21:20,572 INFO L140 encePairwiseOnDemand]: 371/374 looper letters, 35 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2023-08-27 10:21:20,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 168 flow [2023-08-27 10:21:20,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:21:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:21:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 494 transitions. [2023-08-27 10:21:20,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44028520499108736 [2023-08-27 10:21:20,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 494 transitions. [2023-08-27 10:21:20,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 494 transitions. [2023-08-27 10:21:20,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:21:20,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 494 transitions. [2023-08-27 10:21:20,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2023-08-27 10:21:20,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 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) [2023-08-27 10:21:20,612 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 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) [2023-08-27 10:21:20,614 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 92 flow. Second operand 3 states and 494 transitions. [2023-08-27 10:21:20,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 168 flow [2023-08-27 10:21:20,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 41 transitions, 160 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 10:21:20,622 INFO L231 Difference]: Finished difference. Result has 44 places, 41 transitions, 96 flow [2023-08-27 10:21:20,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=44, PETRI_TRANSITIONS=41} [2023-08-27 10:21:20,628 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2023-08-27 10:21:20,628 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 41 transitions, 96 flow [2023-08-27 10:21:20,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2023-08-27 10:21:20,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:21:20,629 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 10:21:20,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 10:21:20,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (and 11 more)] === [2023-08-27 10:21:20,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:21:20,631 INFO L85 PathProgramCache]: Analyzing trace with hash 22352271, now seen corresponding path program 1 times [2023-08-27 10:21:20,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:21:20,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034494321] [2023-08-27 10:21:20,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:21:20,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:21:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:21:20,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:21:20,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:21:20,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034494321] [2023-08-27 10:21:20,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034494321] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:21:20,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:21:20,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:21:20,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858597573] [2023-08-27 10:21:20,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:21:20,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:21:20,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:21:20,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:21:20,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:21:20,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 374 [2023-08-27 10:21:20,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 41 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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) [2023-08-27 10:21:20,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:21:20,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 374 [2023-08-27 10:21:20,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:21:21,299 INFO L124 PetriNetUnfolderBase]: 2061/3307 cut-off events. [2023-08-27 10:21:21,300 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2023-08-27 10:21:21,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6758 conditions, 3307 events. 2061/3307 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 18231 event pairs, 1370 based on Foata normal form. 0/2310 useless extension candidates. Maximal degree in co-relation 6739. Up to 2667 conditions per place. [2023-08-27 10:21:21,317 INFO L140 encePairwiseOnDemand]: 365/374 looper letters, 50 selfloop transitions, 9 changer transitions 0/59 dead transitions. [2023-08-27 10:21:21,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 59 transitions, 250 flow [2023-08-27 10:21:21,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:21:21,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:21:21,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 443 transitions. [2023-08-27 10:21:21,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3948306595365419 [2023-08-27 10:21:21,319 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 443 transitions. [2023-08-27 10:21:21,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 443 transitions. [2023-08-27 10:21:21,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:21:21,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 443 transitions. [2023-08-27 10:21:21,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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) [2023-08-27 10:21:21,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 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) [2023-08-27 10:21:21,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 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) [2023-08-27 10:21:21,324 INFO L175 Difference]: Start difference. First operand has 44 places, 41 transitions, 96 flow. Second operand 3 states and 443 transitions. [2023-08-27 10:21:21,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 59 transitions, 250 flow [2023-08-27 10:21:21,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 59 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 10:21:21,326 INFO L231 Difference]: Finished difference. Result has 47 places, 47 transitions, 156 flow [2023-08-27 10:21:21,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=47, PETRI_TRANSITIONS=47} [2023-08-27 10:21:21,327 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2023-08-27 10:21:21,327 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 47 transitions, 156 flow [2023-08-27 10:21:21,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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) [2023-08-27 10:21:21,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:21:21,327 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 10:21:21,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 10:21:21,328 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (and 11 more)] === [2023-08-27 10:21:21,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:21:21,328 INFO L85 PathProgramCache]: Analyzing trace with hash 692921481, now seen corresponding path program 1 times [2023-08-27 10:21:21,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:21:21,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72464824] [2023-08-27 10:21:21,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:21:21,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:21:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:21:21,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:21:21,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:21:21,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72464824] [2023-08-27 10:21:21,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72464824] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:21:21,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:21:21,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:21:21,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089896211] [2023-08-27 10:21:21,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:21:21,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:21:21,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:21:21,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:21:21,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:21:21,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 374 [2023-08-27 10:21:21,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 47 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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) [2023-08-27 10:21:21,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:21:21,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 374 [2023-08-27 10:21:21,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:21:21,908 INFO L124 PetriNetUnfolderBase]: 2365/3786 cut-off events. [2023-08-27 10:21:21,909 INFO L125 PetriNetUnfolderBase]: For 1248/1248 co-relation queries the response was YES. [2023-08-27 10:21:21,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9413 conditions, 3786 events. 2365/3786 cut-off events. For 1248/1248 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 21327 event pairs, 1640 based on Foata normal form. 65/3008 useless extension candidates. Maximal degree in co-relation 3574. Up to 3164 conditions per place. [2023-08-27 10:21:21,929 INFO L140 encePairwiseOnDemand]: 366/374 looper letters, 55 selfloop transitions, 10 changer transitions 3/68 dead transitions. [2023-08-27 10:21:21,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 68 transitions, 368 flow [2023-08-27 10:21:21,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:21:21,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:21:21,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2023-08-27 10:21:21,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3939393939393939 [2023-08-27 10:21:21,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 442 transitions. [2023-08-27 10:21:21,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 442 transitions. [2023-08-27 10:21:21,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:21:21,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 442 transitions. [2023-08-27 10:21:21,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2023-08-27 10:21:21,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 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) [2023-08-27 10:21:21,935 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 374.0) internal successors, (1496), 4 states have internal predecessors, (1496), 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) [2023-08-27 10:21:21,936 INFO L175 Difference]: Start difference. First operand has 47 places, 47 transitions, 156 flow. Second operand 3 states and 442 transitions. [2023-08-27 10:21:21,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 68 transitions, 368 flow [2023-08-27 10:21:21,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 68 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:21:21,945 INFO L231 Difference]: Finished difference. Result has 48 places, 53 transitions, 210 flow [2023-08-27 10:21:21,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=48, PETRI_TRANSITIONS=53} [2023-08-27 10:21:21,946 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 3 predicate places. [2023-08-27 10:21:21,947 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 53 transitions, 210 flow [2023-08-27 10:21:21,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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) [2023-08-27 10:21:21,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:21:21,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 10:21:21,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 10:21:21,950 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (and 11 more)] === [2023-08-27 10:21:21,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:21:21,951 INFO L85 PathProgramCache]: Analyzing trace with hash 689926026, now seen corresponding path program 1 times [2023-08-27 10:21:21,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:21:21,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796610817] [2023-08-27 10:21:21,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:21:21,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:21:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 10:21:21,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 10:21:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 10:21:22,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 10:21:22,006 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 10:21:22,007 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2023-08-27 10:21:22,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (12 of 14 remaining) [2023-08-27 10:21:22,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (11 of 14 remaining) [2023-08-27 10:21:22,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (10 of 14 remaining) [2023-08-27 10:21:22,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (9 of 14 remaining) [2023-08-27 10:21:22,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (8 of 14 remaining) [2023-08-27 10:21:22,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (7 of 14 remaining) [2023-08-27 10:21:22,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 14 remaining) [2023-08-27 10:21:22,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 14 remaining) [2023-08-27 10:21:22,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2023-08-27 10:21:22,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2023-08-27 10:21:22,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2023-08-27 10:21:22,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2023-08-27 10:21:22,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2023-08-27 10:21:22,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 10:21:22,011 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-27 10:21:22,016 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 10:21:22,016 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 10:21:22,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:21:22 BasicIcfg [2023-08-27 10:21:22,035 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 10:21:22,036 INFO L158 Benchmark]: Toolchain (without parser) took 13223.20ms. Allocated memory was 352.3MB in the beginning and 539.0MB in the end (delta: 186.6MB). Free memory was 325.8MB in the beginning and 322.3MB in the end (delta: 3.5MB). Peak memory consumption was 192.0MB. Max. memory is 16.0GB. [2023-08-27 10:21:22,036 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 352.3MB. Free memory is still 328.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 10:21:22,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 969.26ms. Allocated memory is still 352.3MB. Free memory was 325.6MB in the beginning and 319.9MB in the end (delta: 5.7MB). Peak memory consumption was 59.3MB. Max. memory is 16.0GB. [2023-08-27 10:21:22,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.19ms. Allocated memory is still 352.3MB. Free memory was 319.9MB in the beginning and 315.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-27 10:21:22,037 INFO L158 Benchmark]: Boogie Preprocessor took 64.73ms. Allocated memory is still 352.3MB. Free memory was 315.7MB in the beginning and 313.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:21:22,037 INFO L158 Benchmark]: RCFGBuilder took 579.16ms. Allocated memory is still 352.3MB. Free memory was 312.7MB in the beginning and 283.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-27 10:21:22,038 INFO L158 Benchmark]: TraceAbstraction took 11514.77ms. Allocated memory was 352.3MB in the beginning and 539.0MB in the end (delta: 186.6MB). Free memory was 282.2MB in the beginning and 322.3MB in the end (delta: -40.2MB). Peak memory consumption was 145.3MB. Max. memory is 16.0GB. [2023-08-27 10:21:22,039 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 352.3MB. Free memory is still 328.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 969.26ms. Allocated memory is still 352.3MB. Free memory was 325.6MB in the beginning and 319.9MB in the end (delta: 5.7MB). Peak memory consumption was 59.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 87.19ms. Allocated memory is still 352.3MB. Free memory was 319.9MB in the beginning and 315.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 64.73ms. Allocated memory is still 352.3MB. Free memory was 315.7MB in the beginning and 313.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 579.16ms. Allocated memory is still 352.3MB. Free memory was 312.7MB in the beginning and 283.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 11514.77ms. Allocated memory was 352.3MB in the beginning and 539.0MB in the end (delta: 186.6MB). Free memory was 282.2MB in the beginning and 322.3MB in the end (delta: -40.2MB). Peak memory consumption was 145.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 251]: Unsoundness Warning unspecified type, defaulting to int C: short [251] - GenericResultAtLocation [Line: 251]: Unsoundness Warning unspecified type, defaulting to int C: short [251] - GenericResultAtLocation [Line: 735]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [735] - GenericResultAtLocation [Line: 1691]: Unsoundness Warning unspecified type, defaulting to int C: unsigned long [1691] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0s, 177 PlacesBefore, 45 PlacesAfterwards, 180 TransitionsBefore, 40 TransitionsAfterwards, 4640 CoEnabledTransitionPairs, 7 FixpointIterations, 78 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 25 ConcurrentYvCompositions, 8 ChoiceCompositions, 191 TotalNumberOfCompositions, 12796 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4742, independent: 4383, independent conditional: 0, independent unconditional: 4383, dependent: 359, dependent conditional: 0, dependent unconditional: 359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2702, independent: 2642, independent conditional: 0, independent unconditional: 2642, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4742, independent: 1741, independent conditional: 0, independent unconditional: 1741, dependent: 299, dependent conditional: 0, dependent unconditional: 299, unknown: 2702, unknown conditional: 0, unknown unconditional: 2702] , Statistics on independence cache: Total cache size (in pairs): 123, Positive cache size: 93, Positive conditional cache size: 0, Positive unconditional cache size: 93, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1700]: integer overflow possible integer overflow possible We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=-1, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1694] 1 data->shared.a = 1 VAL [__mptr={2147483654:6}, arg={5:24}, arg={5:24}, data={2147483654:-18}, dev={5:24}, t1={3:0}, t2={4:0}] [L1697] EXPR 1 data->shared.b [L1697] 1 int lb = data->shared.b; [L1700] 1 lb + 1 VAL [__mptr={2147483654:6}, arg={5:24}, arg={5:24}, data={2147483654:-18}, dev={5:24}, lb=2147483647, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1714]: 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: 1713]: 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: 1700]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 192 locations, 14 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: 11.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 255 IncrementalHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 7 mSDtfsCounter, 255 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.6s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 10:21:22,060 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...