/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:34:16,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:34:16,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:34:16,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:34:16,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:34:16,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:34:16,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:34:16,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:34:16,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:34:16,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:34:16,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:34:16,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:34:16,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:34:16,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:34:16,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:34:16,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:34:16,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:34:16,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:34:16,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:34:16,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:34:16,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:34:16,894 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:34:16,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:34:16,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:34:16,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:34:16,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:34:16,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:34:16,896 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:34:16,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:34:16,896 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:34:16,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:34:16,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:34:16,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:34:16,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:34:16,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:34:16,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:34:16,897 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:34:16,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:34:16,897 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:34:16,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:34:16,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:34:16,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:34:16,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:34:16,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:34:16,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:34:16,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:34:16,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:34:16,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:34:16,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:34:16,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:34:16,899 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:34:16,899 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:34:16,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:34:17,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:34:17,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:34:17,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:34:17,122 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:34:17,123 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:34:17,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_power.oepc.i [2022-09-16 11:34:17,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af5dfea2/337ff35fe9d04863abef36e443a87c1d/FLAGdd1846941 [2022-09-16 11:34:17,585 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:34:17,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_power.oepc.i [2022-09-16 11:34:17,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af5dfea2/337ff35fe9d04863abef36e443a87c1d/FLAGdd1846941 [2022-09-16 11:34:17,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af5dfea2/337ff35fe9d04863abef36e443a87c1d [2022-09-16 11:34:17,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:34:17,618 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:34:17,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:34:17,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:34:17,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:34:17,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:34:17" (1/1) ... [2022-09-16 11:34:17,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f57e87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:17, skipping insertion in model container [2022-09-16 11:34:17,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:34:17" (1/1) ... [2022-09-16 11:34:17,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:34:17,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:34:17,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_power.oepc.i[995,1008] [2022-09-16 11:34:18,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:34:18,045 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:34:18,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_power.oepc.i[995,1008] [2022-09-16 11:34:18,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:34:18,124 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:34:18,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18 WrapperNode [2022-09-16 11:34:18,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:34:18,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:34:18,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:34:18,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:34:18,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18" (1/1) ... [2022-09-16 11:34:18,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18" (1/1) ... [2022-09-16 11:34:18,181 INFO L138 Inliner]: procedures = 176, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 262 [2022-09-16 11:34:18,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:34:18,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:34:18,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:34:18,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:34:18,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18" (1/1) ... [2022-09-16 11:34:18,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18" (1/1) ... [2022-09-16 11:34:18,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18" (1/1) ... [2022-09-16 11:34:18,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18" (1/1) ... [2022-09-16 11:34:18,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18" (1/1) ... [2022-09-16 11:34:18,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18" (1/1) ... [2022-09-16 11:34:18,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18" (1/1) ... [2022-09-16 11:34:18,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:34:18,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:34:18,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:34:18,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:34:18,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18" (1/1) ... [2022-09-16 11:34:18,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:34:18,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:34:18,266 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) [2022-09-16 11:34:18,296 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 [2022-09-16 11:34:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:34:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:34:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:34:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:34:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:34:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:34:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:34:18,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:34:18,313 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:34:18,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:34:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:34:18,314 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:34:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:34:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:34:18,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:34:18,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:34:18,316 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:34:18,479 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:34:18,480 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:34:19,108 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:34:19,779 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:34:19,779 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:34:19,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:19 BoogieIcfgContainer [2022-09-16 11:34:19,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:34:19,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:34:19,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:34:19,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:34:19,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:34:17" (1/3) ... [2022-09-16 11:34:19,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d24e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:19, skipping insertion in model container [2022-09-16 11:34:19,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:18" (2/3) ... [2022-09-16 11:34:19,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d24e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:19, skipping insertion in model container [2022-09-16 11:34:19,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:19" (3/3) ... [2022-09-16 11:34:19,787 INFO L112 eAbstractionObserver]: Analyzing ICFG safe001_power.oepc.i [2022-09-16 11:34:19,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:34:19,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:34:19,802 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:34:19,884 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:34:19,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 136 transitions, 287 flow [2022-09-16 11:34:20,004 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-09-16 11:34:20,004 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:20,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-09-16 11:34:20,008 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 136 transitions, 287 flow [2022-09-16 11:34:20,014 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 133 transitions, 275 flow [2022-09-16 11:34:20,024 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:34:20,029 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;@73851e6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:34:20,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-09-16 11:34:20,049 INFO L130 PetriNetUnfolder]: 0/67 cut-off events. [2022-09-16 11:34:20,050 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:20,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:20,051 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, 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] [2022-09-16 11:34:20,051 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:20,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:20,056 INFO L85 PathProgramCache]: Analyzing trace with hash 170672007, now seen corresponding path program 1 times [2022-09-16 11:34:20,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:20,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208169036] [2022-09-16 11:34:20,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:20,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:20,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:20,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208169036] [2022-09-16 11:34:20,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208169036] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:20,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:20,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:34:20,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839803169] [2022-09-16 11:34:20,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:20,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:34:20,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:20,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:34:20,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:34:20,413 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-09-16 11:34:20,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 133 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2022-09-16 11:34:20,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:20,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-09-16 11:34:20,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:20,928 INFO L130 PetriNetUnfolder]: 581/2570 cut-off events. [2022-09-16 11:34:20,928 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-09-16 11:34:20,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3535 conditions, 2570 events. 581/2570 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 23457 event pairs, 393 based on Foata normal form. 136/2334 useless extension candidates. Maximal degree in co-relation 3465. Up to 798 conditions per place. [2022-09-16 11:34:20,948 INFO L137 encePairwiseOnDemand]: 124/136 looper letters, 28 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2022-09-16 11:34:20,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 142 transitions, 363 flow [2022-09-16 11:34:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:34:20,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:34:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2022-09-16 11:34:20,967 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9338235294117647 [2022-09-16 11:34:20,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 381 transitions. [2022-09-16 11:34:20,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 381 transitions. [2022-09-16 11:34:20,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:20,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 381 transitions. [2022-09-16 11:34:20,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2022-09-16 11:34:20,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2022-09-16 11:34:20,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2022-09-16 11:34:20,984 INFO L175 Difference]: Start difference. First operand has 141 places, 133 transitions, 275 flow. Second operand 3 states and 381 transitions. [2022-09-16 11:34:20,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 142 transitions, 363 flow [2022-09-16 11:34:20,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 142 transitions, 358 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:34:20,994 INFO L231 Difference]: Finished difference. Result has 140 places, 133 transitions, 302 flow [2022-09-16 11:34:20,996 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=140, PETRI_TRANSITIONS=133} [2022-09-16 11:34:21,002 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, -1 predicate places. [2022-09-16 11:34:21,002 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 133 transitions, 302 flow [2022-09-16 11:34:21,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2022-09-16 11:34:21,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:21,003 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, 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, 1, 1, 1, 1, 1] [2022-09-16 11:34:21,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:34:21,004 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:21,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:21,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1801874350, now seen corresponding path program 1 times [2022-09-16 11:34:21,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:21,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653029615] [2022-09-16 11:34:21,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:21,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:21,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:21,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:21,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653029615] [2022-09-16 11:34:21,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653029615] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:21,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:21,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:21,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633252604] [2022-09-16 11:34:21,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:21,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:21,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:21,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:21,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:21,179 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-09-16 11:34:21,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 133 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 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) [2022-09-16 11:34:21,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:21,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-09-16 11:34:21,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:21,479 INFO L130 PetriNetUnfolder]: 409/1174 cut-off events. [2022-09-16 11:34:21,483 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-09-16 11:34:21,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2183 conditions, 1174 events. 409/1174 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7819 event pairs, 102 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 2113. Up to 519 conditions per place. [2022-09-16 11:34:21,491 INFO L137 encePairwiseOnDemand]: 129/136 looper letters, 25 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2022-09-16 11:34:21,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 139 transitions, 370 flow [2022-09-16 11:34:21,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:21,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:21,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 484 transitions. [2022-09-16 11:34:21,494 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8897058823529411 [2022-09-16 11:34:21,494 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 484 transitions. [2022-09-16 11:34:21,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 484 transitions. [2022-09-16 11:34:21,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:21,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 484 transitions. [2022-09-16 11:34:21,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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) [2022-09-16 11:34:21,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2022-09-16 11:34:21,499 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2022-09-16 11:34:21,499 INFO L175 Difference]: Start difference. First operand has 140 places, 133 transitions, 302 flow. Second operand 4 states and 484 transitions. [2022-09-16 11:34:21,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 139 transitions, 370 flow [2022-09-16 11:34:21,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 139 transitions, 366 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:34:21,506 INFO L231 Difference]: Finished difference. Result has 139 places, 130 transitions, 294 flow [2022-09-16 11:34:21,506 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=294, PETRI_PLACES=139, PETRI_TRANSITIONS=130} [2022-09-16 11:34:21,507 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, -2 predicate places. [2022-09-16 11:34:21,507 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 130 transitions, 294 flow [2022-09-16 11:34:21,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 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) [2022-09-16 11:34:21,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:21,508 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, 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, 1, 1, 1, 1, 1] [2022-09-16 11:34:21,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:34:21,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:21,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:21,508 INFO L85 PathProgramCache]: Analyzing trace with hash 256251721, now seen corresponding path program 1 times [2022-09-16 11:34:21,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:21,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937172903] [2022-09-16 11:34:21,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:21,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:21,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:21,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:21,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937172903] [2022-09-16 11:34:21,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937172903] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:21,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:21,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:21,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120576977] [2022-09-16 11:34:21,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:21,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:21,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:21,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:21,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:21,613 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-09-16 11:34:21,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 130 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 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) [2022-09-16 11:34:21,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:21,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-09-16 11:34:21,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:21,836 INFO L130 PetriNetUnfolder]: 288/1173 cut-off events. [2022-09-16 11:34:21,837 INFO L131 PetriNetUnfolder]: For 202/202 co-relation queries the response was YES. [2022-09-16 11:34:21,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1882 conditions, 1173 events. 288/1173 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 8027 event pairs, 110 based on Foata normal form. 0/1101 useless extension candidates. Maximal degree in co-relation 1811. Up to 196 conditions per place. [2022-09-16 11:34:21,844 INFO L137 encePairwiseOnDemand]: 129/136 looper letters, 30 selfloop transitions, 7 changer transitions 3/150 dead transitions. [2022-09-16 11:34:21,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 150 transitions, 426 flow [2022-09-16 11:34:21,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:21,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 495 transitions. [2022-09-16 11:34:21,846 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9099264705882353 [2022-09-16 11:34:21,846 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 495 transitions. [2022-09-16 11:34:21,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 495 transitions. [2022-09-16 11:34:21,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:21,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 495 transitions. [2022-09-16 11:34:21,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 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) [2022-09-16 11:34:21,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2022-09-16 11:34:21,849 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2022-09-16 11:34:21,849 INFO L175 Difference]: Start difference. First operand has 139 places, 130 transitions, 294 flow. Second operand 4 states and 495 transitions. [2022-09-16 11:34:21,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 150 transitions, 426 flow [2022-09-16 11:34:21,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 150 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:34:21,854 INFO L231 Difference]: Finished difference. Result has 141 places, 130 transitions, 315 flow [2022-09-16 11:34:21,854 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=315, PETRI_PLACES=141, PETRI_TRANSITIONS=130} [2022-09-16 11:34:21,855 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, 0 predicate places. [2022-09-16 11:34:21,855 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 130 transitions, 315 flow [2022-09-16 11:34:21,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 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) [2022-09-16 11:34:21,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:21,856 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:34:21,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:34:21,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:21,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:21,856 INFO L85 PathProgramCache]: Analyzing trace with hash -677732755, now seen corresponding path program 1 times [2022-09-16 11:34:21,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:21,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393860798] [2022-09-16 11:34:21,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:21,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:22,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:22,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:22,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393860798] [2022-09-16 11:34:22,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393860798] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:22,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:22,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:34:22,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924634979] [2022-09-16 11:34:22,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:22,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:34:22,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:22,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:34:22,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:34:22,040 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2022-09-16 11:34:22,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 130 transitions, 315 flow. Second operand has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 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) [2022-09-16 11:34:22,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:22,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2022-09-16 11:34:22,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:22,236 INFO L130 PetriNetUnfolder]: 268/923 cut-off events. [2022-09-16 11:34:22,236 INFO L131 PetriNetUnfolder]: For 357/357 co-relation queries the response was YES. [2022-09-16 11:34:22,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1758 conditions, 923 events. 268/923 cut-off events. For 357/357 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5782 event pairs, 74 based on Foata normal form. 12/903 useless extension candidates. Maximal degree in co-relation 1686. Up to 196 conditions per place. [2022-09-16 11:34:22,239 INFO L137 encePairwiseOnDemand]: 129/136 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2022-09-16 11:34:22,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 144 transitions, 405 flow [2022-09-16 11:34:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:34:22,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:34:22,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 602 transitions. [2022-09-16 11:34:22,242 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8852941176470588 [2022-09-16 11:34:22,242 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 602 transitions. [2022-09-16 11:34:22,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 602 transitions. [2022-09-16 11:34:22,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:22,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 602 transitions. [2022-09-16 11:34:22,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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) [2022-09-16 11:34:22,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 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) [2022-09-16 11:34:22,245 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 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) [2022-09-16 11:34:22,245 INFO L175 Difference]: Start difference. First operand has 141 places, 130 transitions, 315 flow. Second operand 5 states and 602 transitions. [2022-09-16 11:34:22,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 144 transitions, 405 flow [2022-09-16 11:34:22,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 144 transitions, 381 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-09-16 11:34:22,248 INFO L231 Difference]: Finished difference. Result has 138 places, 0 transitions, 0 flow [2022-09-16 11:34:22,249 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=138, PETRI_TRANSITIONS=0} [2022-09-16 11:34:22,252 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, -3 predicate places. [2022-09-16 11:34:22,252 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 0 transitions, 0 flow [2022-09-16 11:34:22,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 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) [2022-09-16 11:34:22,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-09-16 11:34:22,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-09-16 11:34:22,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-09-16 11:34:22,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-09-16 11:34:22,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-09-16 11:34:22,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-09-16 11:34:22,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-09-16 11:34:22,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-09-16 11:34:22,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-09-16 11:34:22,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-09-16 11:34:22,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-09-16 11:34:22,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-09-16 11:34:22,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-09-16 11:34:22,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-09-16 11:34:22,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-09-16 11:34:22,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:34:22,259 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-09-16 11:34:22,264 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:34:22,264 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:34:22,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:34:22 BasicIcfg [2022-09-16 11:34:22,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:34:22,273 INFO L158 Benchmark]: Toolchain (without parser) took 4655.33ms. Allocated memory was 177.2MB in the beginning and 366.0MB in the end (delta: 188.7MB). Free memory was 121.9MB in the beginning and 110.7MB in the end (delta: 11.3MB). Peak memory consumption was 199.3MB. Max. memory is 8.0GB. [2022-09-16 11:34:22,274 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 177.2MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:34:22,274 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.12ms. Allocated memory is still 177.2MB. Free memory was 121.6MB in the beginning and 134.2MB in the end (delta: -12.6MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2022-09-16 11:34:22,274 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.76ms. Allocated memory is still 177.2MB. Free memory was 134.2MB in the beginning and 131.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:22,276 INFO L158 Benchmark]: Boogie Preprocessor took 35.00ms. Allocated memory is still 177.2MB. Free memory was 131.1MB in the beginning and 127.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:22,276 INFO L158 Benchmark]: RCFGBuilder took 1564.58ms. Allocated memory was 177.2MB in the beginning and 222.3MB in the end (delta: 45.1MB). Free memory was 127.9MB in the beginning and 91.5MB in the end (delta: 36.4MB). Peak memory consumption was 112.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:22,281 INFO L158 Benchmark]: TraceAbstraction took 2489.45ms. Allocated memory was 222.3MB in the beginning and 366.0MB in the end (delta: 143.7MB). Free memory was 91.0MB in the beginning and 110.7MB in the end (delta: -19.7MB). Peak memory consumption was 123.4MB. Max. memory is 8.0GB. [2022-09-16 11:34:22,282 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 177.2MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 505.12ms. Allocated memory is still 177.2MB. Free memory was 121.6MB in the beginning and 134.2MB in the end (delta: -12.6MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.76ms. Allocated memory is still 177.2MB. Free memory was 134.2MB in the beginning and 131.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.00ms. Allocated memory is still 177.2MB. Free memory was 131.1MB in the beginning and 127.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1564.58ms. Allocated memory was 177.2MB in the beginning and 222.3MB in the end (delta: 45.1MB). Free memory was 127.9MB in the beginning and 91.5MB in the end (delta: 36.4MB). Peak memory consumption was 112.1MB. Max. memory is 8.0GB. * TraceAbstraction took 2489.45ms. Allocated memory was 222.3MB in the beginning and 366.0MB in the end (delta: 143.7MB). Free memory was 91.0MB in the beginning and 110.7MB in the end (delta: -19.7MB). Peak memory consumption was 123.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 167 locations, 15 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: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 10 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.4s InterpolantComputationTime, 308 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 304 ConstructedInterpolants, 0 QuantifiedInterpolants, 848 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:34:22,316 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...