/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/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 10:19:20,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 10:19:20,458 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 10:19:20,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 10:19:20,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 10:19:20,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 10:19:20,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 10:19:20,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 10:19:20,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 10:19:20,503 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 10:19:20,503 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 10:19:20,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 10:19:20,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 10:19:20,504 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 10:19:20,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 10:19:20,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 10:19:20,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 10:19:20,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 10:19:20,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 10:19:20,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 10:19:20,506 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 10:19:20,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 10:19:20,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 10:19:20,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 10:19:20,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 10:19:20,507 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 10:19:20,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 10:19:20,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:19:20,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 10:19:20,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 10:19:20,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 10:19:20,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 10:19:20,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 10:19:20,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 10:19:20,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 10:19:20,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 10:19:20,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 10:19:20,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 10:19:20,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 10:19:20,859 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 10:19:20,859 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 10:19:20,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 10:19:22,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 10:19:22,386 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 10:19:22,386 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 10:19:22,412 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82cbb85f1/db4efd07b521463195782fd0e13a51a0/FLAG1786e12d7 [2023-08-27 10:19:22,427 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82cbb85f1/db4efd07b521463195782fd0e13a51a0 [2023-08-27 10:19:22,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 10:19:22,433 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 10:19:22,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 10:19:22,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 10:19:22,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 10:19:22,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:22,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a86069d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22, skipping insertion in model container [2023-08-27 10:19:22,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:22,492 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 10:19:22,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:19:22,834 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 10:19:22,867 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:19:22,869 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:19:22,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:19:22,931 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:19:22,932 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:19:22,938 INFO L206 MainTranslator]: Completed translation [2023-08-27 10:19:22,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22 WrapperNode [2023-08-27 10:19:22,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 10:19:22,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 10:19:22,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 10:19:22,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 10:19:22,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:22,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:23,000 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2023-08-27 10:19:23,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 10:19:23,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 10:19:23,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 10:19:23,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 10:19:23,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:23,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:23,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:23,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:23,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:23,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:23,034 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:23,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:23,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 10:19:23,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 10:19:23,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 10:19:23,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 10:19:23,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (1/1) ... [2023-08-27 10:19:23,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:19:23,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 10:19:23,073 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 10:19:23,101 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 10:19:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 10:19:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 10:19:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 10:19:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 10:19:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 10:19:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 10:19:23,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 10:19:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 10:19:23,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 10:19:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-27 10:19:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-27 10:19:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 10:19:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 10:19:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 10:19:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 10:19:23,123 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 10:19:23,272 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 10:19:23,274 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 10:19:23,490 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 10:19:23,512 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 10:19:23,512 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 10:19:23,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:19:23 BoogieIcfgContainer [2023-08-27 10:19:23,515 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 10:19:23,517 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 10:19:23,517 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 10:19:23,520 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 10:19:23,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:19:22" (1/3) ... [2023-08-27 10:19:23,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea6e863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:19:23, skipping insertion in model container [2023-08-27 10:19:23,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:22" (2/3) ... [2023-08-27 10:19:23,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea6e863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:19:23, skipping insertion in model container [2023-08-27 10:19:23,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:19:23" (3/3) ... [2023-08-27 10:19:23,522 INFO L112 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-27 10:19:23,535 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 10:19:23,536 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-27 10:19:23,536 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 10:19:23,600 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 10:19:23,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 94 transitions, 203 flow [2023-08-27 10:19:23,668 INFO L124 PetriNetUnfolderBase]: 3/91 cut-off events. [2023-08-27 10:19:23,668 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:19:23,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-27 10:19:23,673 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 94 transitions, 203 flow [2023-08-27 10:19:23,677 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 91 transitions, 191 flow [2023-08-27 10:19:23,680 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 10:19:23,687 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 91 transitions, 191 flow [2023-08-27 10:19:23,689 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 91 transitions, 191 flow [2023-08-27 10:19:23,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 91 transitions, 191 flow [2023-08-27 10:19:23,711 INFO L124 PetriNetUnfolderBase]: 3/91 cut-off events. [2023-08-27 10:19:23,711 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:19:23,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-27 10:19:23,713 INFO L119 LiptonReduction]: Number of co-enabled transitions 2146 [2023-08-27 10:19:25,869 INFO L134 LiptonReduction]: Checked pairs total: 5105 [2023-08-27 10:19:25,869 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-08-27 10:19:25,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 10:19:25,897 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;@1547dfa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 10:19:25,897 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-27 10:19:25,900 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 10:19:25,900 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-27 10:19:25,900 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:19:25,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:25,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 10:19:25,901 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:19:25,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:25,906 INFO L85 PathProgramCache]: Analyzing trace with hash 331548998, now seen corresponding path program 1 times [2023-08-27 10:19:25,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:25,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302883468] [2023-08-27 10:19:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:25,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:26,082 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 10:19:26,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:26,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302883468] [2023-08-27 10:19:26,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302883468] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:26,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:26,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 10:19:26,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811452899] [2023-08-27 10:19:26,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:26,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:19:26,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:26,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:19:26,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:19:26,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 174 [2023-08-27 10:19:26,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 10:19:26,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:26,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 174 [2023-08-27 10:19:26,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:26,291 INFO L124 PetriNetUnfolderBase]: 532/884 cut-off events. [2023-08-27 10:19:26,291 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-27 10:19:26,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1801 conditions, 884 events. 532/884 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 4424 event pairs, 306 based on Foata normal form. 8/552 useless extension candidates. Maximal degree in co-relation 1790. Up to 843 conditions per place. [2023-08-27 10:19:26,299 INFO L140 encePairwiseOnDemand]: 162/174 looper letters, 28 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2023-08-27 10:19:26,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 34 transitions, 147 flow [2023-08-27 10:19:26,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:19:26,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:19:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2023-08-27 10:19:26,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5153256704980843 [2023-08-27 10:19:26,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2023-08-27 10:19:26,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2023-08-27 10:19:26,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:26,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2023-08-27 10:19:26,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 10:19:26,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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 10:19:26,322 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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 10:19:26,323 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 59 flow. Second operand 3 states and 269 transitions. [2023-08-27 10:19:26,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 34 transitions, 147 flow [2023-08-27 10:19:26,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 34 transitions, 142 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 10:19:26,328 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 92 flow [2023-08-27 10:19:26,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2023-08-27 10:19:26,333 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2023-08-27 10:19:26,333 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 92 flow [2023-08-27 10:19:26,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 10:19:26,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:26,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:19:26,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 10:19:26,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:19:26,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:26,335 INFO L85 PathProgramCache]: Analyzing trace with hash 978066754, now seen corresponding path program 1 times [2023-08-27 10:19:26,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:26,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448966471] [2023-08-27 10:19:26,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:26,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:26,478 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 10:19:26,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:26,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448966471] [2023-08-27 10:19:26,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448966471] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:26,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:26,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:19:26,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523844413] [2023-08-27 10:19:26,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:26,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:19:26,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:26,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:19:26,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:19:26,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 174 [2023-08-27 10:19:26,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 10:19:26,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:26,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 174 [2023-08-27 10:19:26,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:26,578 INFO L124 PetriNetUnfolderBase]: 327/555 cut-off events. [2023-08-27 10:19:26,579 INFO L125 PetriNetUnfolderBase]: For 79/83 co-relation queries the response was YES. [2023-08-27 10:19:26,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 555 events. 327/555 cut-off events. For 79/83 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2445 event pairs, 150 based on Foata normal form. 4/412 useless extension candidates. Maximal degree in co-relation 1427. Up to 513 conditions per place. [2023-08-27 10:19:26,594 INFO L140 encePairwiseOnDemand]: 167/174 looper letters, 25 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2023-08-27 10:19:26,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 156 flow [2023-08-27 10:19:26,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:19:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:19:26,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2023-08-27 10:19:26,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4827586206896552 [2023-08-27 10:19:26,597 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 336 transitions. [2023-08-27 10:19:26,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 336 transitions. [2023-08-27 10:19:26,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:26,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 336 transitions. [2023-08-27 10:19:26,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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 10:19:26,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 10:19:26,601 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 10:19:26,602 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 92 flow. Second operand 4 states and 336 transitions. [2023-08-27 10:19:26,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 31 transitions, 156 flow [2023-08-27 10:19:26,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 10:19:26,603 INFO L231 Difference]: Finished difference. Result has 33 places, 24 transitions, 84 flow [2023-08-27 10:19:26,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=33, PETRI_TRANSITIONS=24} [2023-08-27 10:19:26,604 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2023-08-27 10:19:26,604 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 84 flow [2023-08-27 10:19:26,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 10:19:26,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:26,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:19:26,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 10:19:26,605 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:19:26,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:26,606 INFO L85 PathProgramCache]: Analyzing trace with hash 978066755, now seen corresponding path program 1 times [2023-08-27 10:19:26,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:26,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234050157] [2023-08-27 10:19:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:26,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:26,661 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 10:19:26,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:26,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234050157] [2023-08-27 10:19:26,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234050157] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:26,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:26,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:19:26,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963888948] [2023-08-27 10:19:26,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:26,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:19:26,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:26,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:19:26,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:19:26,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 174 [2023-08-27 10:19:26,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 10:19:26,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:26,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 174 [2023-08-27 10:19:26,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:26,728 INFO L124 PetriNetUnfolderBase]: 92/193 cut-off events. [2023-08-27 10:19:26,728 INFO L125 PetriNetUnfolderBase]: For 69/73 co-relation queries the response was YES. [2023-08-27 10:19:26,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 193 events. 92/193 cut-off events. For 69/73 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 655 event pairs, 31 based on Foata normal form. 16/183 useless extension candidates. Maximal degree in co-relation 500. Up to 104 conditions per place. [2023-08-27 10:19:26,730 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 30 selfloop transitions, 7 changer transitions 0/39 dead transitions. [2023-08-27 10:19:26,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 200 flow [2023-08-27 10:19:26,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:19:26,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:19:26,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 345 transitions. [2023-08-27 10:19:26,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4956896551724138 [2023-08-27 10:19:26,732 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 345 transitions. [2023-08-27 10:19:26,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 345 transitions. [2023-08-27 10:19:26,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:26,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 345 transitions. [2023-08-27 10:19:26,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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 10:19:26,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 10:19:26,736 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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 10:19:26,736 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 84 flow. Second operand 4 states and 345 transitions. [2023-08-27 10:19:26,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 200 flow [2023-08-27 10:19:26,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 195 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:19:26,738 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 125 flow [2023-08-27 10:19:26,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=125, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2023-08-27 10:19:26,738 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-08-27 10:19:26,739 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 125 flow [2023-08-27 10:19:26,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 10:19:26,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:26,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:19:26,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 10:19:26,740 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:19:26,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:26,740 INFO L85 PathProgramCache]: Analyzing trace with hash -761889998, now seen corresponding path program 1 times [2023-08-27 10:19:26,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:26,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300814761] [2023-08-27 10:19:26,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:26,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:26,809 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 10:19:26,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:26,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300814761] [2023-08-27 10:19:26,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300814761] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:26,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:26,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:19:26,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56035647] [2023-08-27 10:19:26,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:26,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:19:26,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:26,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:19:26,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:19:26,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 174 [2023-08-27 10:19:26,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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 10:19:26,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:26,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 174 [2023-08-27 10:19:26,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:26,875 INFO L124 PetriNetUnfolderBase]: 56/118 cut-off events. [2023-08-27 10:19:26,875 INFO L125 PetriNetUnfolderBase]: For 128/136 co-relation queries the response was YES. [2023-08-27 10:19:26,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 118 events. 56/118 cut-off events. For 128/136 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 347 event pairs, 15 based on Foata normal form. 14/130 useless extension candidates. Maximal degree in co-relation 372. Up to 48 conditions per place. [2023-08-27 10:19:26,876 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 23 selfloop transitions, 10 changer transitions 1/36 dead transitions. [2023-08-27 10:19:26,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 36 transitions, 205 flow [2023-08-27 10:19:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:19:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:19:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 418 transitions. [2023-08-27 10:19:26,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4804597701149425 [2023-08-27 10:19:26,878 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 418 transitions. [2023-08-27 10:19:26,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 418 transitions. [2023-08-27 10:19:26,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:26,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 418 transitions. [2023-08-27 10:19:26,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 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 10:19:26,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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 10:19:26,882 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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 10:19:26,882 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 125 flow. Second operand 5 states and 418 transitions. [2023-08-27 10:19:26,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 36 transitions, 205 flow [2023-08-27 10:19:26,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 191 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-27 10:19:26,885 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 119 flow [2023-08-27 10:19:26,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=119, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-08-27 10:19:26,885 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-08-27 10:19:26,886 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 119 flow [2023-08-27 10:19:26,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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 10:19:26,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:26,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:19:26,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 10:19:26,886 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:19:26,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:26,887 INFO L85 PathProgramCache]: Analyzing trace with hash -895594505, now seen corresponding path program 1 times [2023-08-27 10:19:26,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:26,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145527725] [2023-08-27 10:19:26,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:26,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:27,123 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 10:19:27,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:27,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145527725] [2023-08-27 10:19:27,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145527725] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:27,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:27,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:19:27,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762074233] [2023-08-27 10:19:27,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:27,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:19:27,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:27,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:19:27,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:19:27,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 174 [2023-08-27 10:19:27,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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 10:19:27,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:27,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 174 [2023-08-27 10:19:27,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:27,242 INFO L124 PetriNetUnfolderBase]: 117/227 cut-off events. [2023-08-27 10:19:27,242 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2023-08-27 10:19:27,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 227 events. 117/227 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 759 event pairs, 11 based on Foata normal form. 1/228 useless extension candidates. Maximal degree in co-relation 764. Up to 97 conditions per place. [2023-08-27 10:19:27,244 INFO L140 encePairwiseOnDemand]: 167/174 looper letters, 43 selfloop transitions, 8 changer transitions 7/58 dead transitions. [2023-08-27 10:19:27,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 58 transitions, 400 flow [2023-08-27 10:19:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 10:19:27,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 10:19:27,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 453 transitions. [2023-08-27 10:19:27,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4339080459770115 [2023-08-27 10:19:27,246 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 453 transitions. [2023-08-27 10:19:27,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 453 transitions. [2023-08-27 10:19:27,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:27,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 453 transitions. [2023-08-27 10:19:27,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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 10:19:27,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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 10:19:27,252 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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 10:19:27,252 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 119 flow. Second operand 6 states and 453 transitions. [2023-08-27 10:19:27,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 58 transitions, 400 flow [2023-08-27 10:19:27,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 58 transitions, 344 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-27 10:19:27,258 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 147 flow [2023-08-27 10:19:27,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=147, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2023-08-27 10:19:27,259 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2023-08-27 10:19:27,259 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 147 flow [2023-08-27 10:19:27,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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 10:19:27,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:27,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:19:27,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 10:19:27,260 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:19:27,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:27,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1162485825, now seen corresponding path program 2 times [2023-08-27 10:19:27,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:27,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573614631] [2023-08-27 10:19:27,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:27,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:27,461 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 10:19:27,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:27,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573614631] [2023-08-27 10:19:27,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573614631] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:27,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:27,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:19:27,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701000696] [2023-08-27 10:19:27,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:27,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 10:19:27,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:27,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 10:19:27,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-27 10:19:27,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 174 [2023-08-27 10:19:27,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 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 10:19:27,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:27,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 174 [2023-08-27 10:19:27,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:27,558 INFO L124 PetriNetUnfolderBase]: 147/295 cut-off events. [2023-08-27 10:19:27,558 INFO L125 PetriNetUnfolderBase]: For 356/356 co-relation queries the response was YES. [2023-08-27 10:19:27,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1109 conditions, 295 events. 147/295 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1142 event pairs, 25 based on Foata normal form. 1/296 useless extension candidates. Maximal degree in co-relation 1096. Up to 158 conditions per place. [2023-08-27 10:19:27,560 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 32 selfloop transitions, 5 changer transitions 17/54 dead transitions. [2023-08-27 10:19:27,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 386 flow [2023-08-27 10:19:27,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:19:27,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:19:27,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 374 transitions. [2023-08-27 10:19:27,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4298850574712644 [2023-08-27 10:19:27,562 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 374 transitions. [2023-08-27 10:19:27,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 374 transitions. [2023-08-27 10:19:27,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:27,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 374 transitions. [2023-08-27 10:19:27,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 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 10:19:27,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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 10:19:27,567 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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 10:19:27,567 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 147 flow. Second operand 5 states and 374 transitions. [2023-08-27 10:19:27,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 386 flow [2023-08-27 10:19:27,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 384 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-27 10:19:27,572 INFO L231 Difference]: Finished difference. Result has 44 places, 28 transitions, 158 flow [2023-08-27 10:19:27,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=44, PETRI_TRANSITIONS=28} [2023-08-27 10:19:27,574 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 10 predicate places. [2023-08-27 10:19:27,575 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 28 transitions, 158 flow [2023-08-27 10:19:27,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 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 10:19:27,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:27,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:19:27,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 10:19:27,577 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-27 10:19:27,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:27,577 INFO L85 PathProgramCache]: Analyzing trace with hash 68875351, now seen corresponding path program 3 times [2023-08-27 10:19:27,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:27,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548726345] [2023-08-27 10:19:27,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:27,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:27,722 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 10:19:27,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:27,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548726345] [2023-08-27 10:19:27,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548726345] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:27,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:27,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:19:27,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720449782] [2023-08-27 10:19:27,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:27,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:19:27,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:27,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:19:27,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:19:27,725 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 174 [2023-08-27 10:19:27,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 28 transitions, 158 flow. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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 10:19:27,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:27,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 174 [2023-08-27 10:19:27,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:27,832 INFO L124 PetriNetUnfolderBase]: 100/200 cut-off events. [2023-08-27 10:19:27,832 INFO L125 PetriNetUnfolderBase]: For 327/327 co-relation queries the response was YES. [2023-08-27 10:19:27,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 200 events. 100/200 cut-off events. For 327/327 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 685 event pairs, 10 based on Foata normal form. 1/201 useless extension candidates. Maximal degree in co-relation 786. Up to 122 conditions per place. [2023-08-27 10:19:27,833 INFO L140 encePairwiseOnDemand]: 167/174 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2023-08-27 10:19:27,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 421 flow [2023-08-27 10:19:27,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 10:19:27,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 10:19:27,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 447 transitions. [2023-08-27 10:19:27,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4281609195402299 [2023-08-27 10:19:27,835 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 447 transitions. [2023-08-27 10:19:27,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 447 transitions. [2023-08-27 10:19:27,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:27,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 447 transitions. [2023-08-27 10:19:27,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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 10:19:27,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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 10:19:27,838 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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 10:19:27,838 INFO L175 Difference]: Start difference. First operand has 44 places, 28 transitions, 158 flow. Second operand 6 states and 447 transitions. [2023-08-27 10:19:27,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 421 flow [2023-08-27 10:19:27,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 56 transitions, 403 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-27 10:19:27,841 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-08-27 10:19:27,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-08-27 10:19:27,841 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 10 predicate places. [2023-08-27 10:19:27,842 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-08-27 10:19:27,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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 10:19:27,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-08-27 10:19:27,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-08-27 10:19:27,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-08-27 10:19:27,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-08-27 10:19:27,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-08-27 10:19:27,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-08-27 10:19:27,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-27 10:19:27,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-08-27 10:19:27,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-08-27 10:19:27,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-08-27 10:19:27,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-08-27 10:19:27,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-08-27 10:19:27,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-08-27 10:19:27,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-08-27 10:19:27,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-08-27 10:19:27,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-08-27 10:19:27,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 10:19:27,846 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-08-27 10:19:27,850 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 10:19:27,850 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 10:19:27,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:19:27 BasicIcfg [2023-08-27 10:19:27,853 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 10:19:27,853 INFO L158 Benchmark]: Toolchain (without parser) took 5420.88ms. Allocated memory was 371.2MB in the beginning and 474.0MB in the end (delta: 102.8MB). Free memory was 346.1MB in the beginning and 440.4MB in the end (delta: -94.3MB). Peak memory consumption was 7.2MB. Max. memory is 16.0GB. [2023-08-27 10:19:27,854 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 371.2MB. Free memory was 348.9MB in the beginning and 348.7MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 10:19:27,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.78ms. Allocated memory is still 371.2MB. Free memory was 346.1MB in the beginning and 325.9MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 10:19:27,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.19ms. Allocated memory is still 371.2MB. Free memory was 325.9MB in the beginning and 323.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:19:27,854 INFO L158 Benchmark]: Boogie Preprocessor took 35.42ms. Allocated memory is still 371.2MB. Free memory was 323.9MB in the beginning and 322.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:19:27,855 INFO L158 Benchmark]: RCFGBuilder took 476.96ms. Allocated memory is still 371.2MB. Free memory was 322.1MB in the beginning and 306.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-27 10:19:27,855 INFO L158 Benchmark]: TraceAbstraction took 4335.71ms. Allocated memory was 371.2MB in the beginning and 474.0MB in the end (delta: 102.8MB). Free memory was 305.4MB in the beginning and 440.4MB in the end (delta: -135.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 10:19:27,856 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 371.2MB. Free memory was 348.9MB in the beginning and 348.7MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 503.78ms. Allocated memory is still 371.2MB. Free memory was 346.1MB in the beginning and 325.9MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.19ms. Allocated memory is still 371.2MB. Free memory was 325.9MB in the beginning and 323.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.42ms. Allocated memory is still 371.2MB. Free memory was 323.9MB in the beginning and 322.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 476.96ms. Allocated memory is still 371.2MB. Free memory was 322.1MB in the beginning and 306.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 4335.71ms. Allocated memory was 371.2MB in the beginning and 474.0MB in the end (delta: 102.8MB). Free memory was 305.4MB in the beginning and 440.4MB in the end (delta: -135.0MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 98 PlacesBefore, 34 PlacesAfterwards, 91 TransitionsBefore, 25 TransitionsAfterwards, 2146 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 5105 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2502, independent: 2362, independent conditional: 0, independent unconditional: 2362, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1166, independent: 1127, independent conditional: 0, independent unconditional: 1127, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2502, independent: 1235, independent conditional: 0, independent unconditional: 1235, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 1166, unknown conditional: 0, unknown unconditional: 1166] , Statistics on independence cache: Total cache size (in pairs): 97, Positive cache size: 84, Positive conditional cache size: 0, Positive unconditional cache size: 84, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 747]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 747]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 121 locations, 16 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: 4.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 402 IncrementalHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 402 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=6, InterpolantAutomatonStates: 33, 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, 0.8s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 10:19:27,877 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...